mirror of
https://github.com/lcn2/calc.git
synced 2025-08-16 01:03:29 +03:00
improve macOS shared library building and use by calc
Dropped the use of Makefile variable ${SET_INSTALL_NAME}.
Under macOS it was always needed, elsewhere it was not.
Under macOS, the current version of both libcalc and
libcustcalc are set to the current calc release version.
Under macOS, to reduce dependency chains, we remove functions and
data that are unreachable by the entry point or exported symbols.
In particular, the linker is run with "-dead_strip".
This commit is contained in:
Landon Curt Noll
272
Makefile.target
272
Makefile.target
@@ -86,13 +86,18 @@
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#
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# Specific target overrides or modifications to default values
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################
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# Linux target #
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################
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ifeq ($(target),Linux)
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# default build type for this target
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#
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BLD_TYPE= calc-dynamic-only
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# target specific library parameters
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#
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CC_SHARE= -fPIC
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DEFAULT_LIB_INSTALL_PATH= ${PWD}:/lib:/usr/lib:${LIBDIR}:${PREFIX}/lib
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@@ -100,26 +105,15 @@ LD_SHARE= "-Wl,-rpath,${DEFAULT_LIB_INSTALL_PATH}" \
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"-Wl,-rpath-link,${DEFAULT_LIB_INSTALL_PATH}"
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LIBCALC_SHLIB= -shared "-Wl,-soname,libcalc${LIB_EXT_VERSION}"
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LIBCUSTCALC_SHLIB= -shared "-Wl,-soname,libcustcalc${LIB_EXT_VERSION}"
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# static library option
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#
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CC_STATIC=
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LD_STATIC=
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LIBCALC_STATIC=
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LIBCUSTCALC_STATIC=
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#
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# If you want to add flags to all compiler and linker
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# run (via ${COMMON_CFLAGS} and ${COMMON_LDFLAGS}),
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# set ${COMMON_ADD}.
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#
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# For example to use gcc's -Werror to force warnings
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# to become errors, call make with:
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#
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# make .. COMMON_ADD='-Werror'
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#
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# This facility requires a Gnu Makefile, or a make command
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# that understands the += make operand.
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#
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COMMON_CFLAGS+= ${COMMON_ADD}
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COMMON_LDFLAGS+= ${COMMON_ADD}
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# common values set for this target
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#
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#CCWARN= -Wall
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CCWARN= -Wall -Wextra -pedantic
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@@ -129,69 +123,65 @@ WNO_LONG_LONG= -Wno-long-long
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CCWERR=
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CCOPT= ${DEBUG}
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CCMISC=
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#
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LCC= gcc
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CC= ${PURIFY} ${LCC} ${CCWERR}
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#
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endif # ($(target),Linux)
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###############################
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# Apple macOS / Darwin target #
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###############################
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ifeq ($(target),Darwin)
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# default build type for this target
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#
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BLD_TYPE= calc-dynamic-only
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# For old Apple Power PC systems, we need to add:
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#
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# -std=gnu99 -arch ppc
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#
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ifeq ($(arch),powerpc)
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COMMON_CFLAGS+= -std=gnu99
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COMMON_LDFLAGS+= -std=gnu99
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COMMON_ADD+= -std=gnu99
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ARCH_CFLAGS+= -arch ppc
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endif # ($(arch),powerpc)
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ifeq ($(target),Darwin)
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#
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BLD_TYPE= calc-dynamic-only
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# target specific library parameters
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#
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CC_SHARE= -fPIC
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DEFAULT_LIB_INSTALL_PATH= ${PWD}:${LIBDIR}:${PREFIX}/lib
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LD_SHARE= ${ARCH_CFLAGS}
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#SET_INSTALL_NAME= no
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SET_INSTALL_NAME= yes
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ifeq ($(SET_INSTALL_NAME),yes)
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LIBCALC_SHLIB= -single_module -undefined dynamic_lookup -dynamiclib \
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-install_name ${LIBDIR}/libcalc${LIB_EXT_VERSION} ${ARCH_CFLAGS}
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else # ($(SET_INSTALL_NAME),yes)
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LIBCALC_SHLIB= -single_module -undefined dynamic_lookup -dynamiclib \
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LIBCALC_SHLIB= -dynamiclib -undefined dynamic_lookup \
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-install_name ${LIBDIR}/libcalc${LIB_EXT_VERSION} \
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-current_version ${VERSION} \
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${ARCH_CFLAGS}
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endif # ($(SET_INSTALL_NAME),yes)
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ifeq ($(SET_INSTALL_NAME),yes)
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LIBCUSTCALC_SHLIB= -single_module -undefined dynamic_lookup -dynamiclib \
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-install_name ${LIBDIR}/libcustcalc${LIB_EXT_VERSION} ${ARCH_CFLAGS}
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else # ($(SET_INSTALL_NAME),yes)
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LIBCUSTCALC_SHLIB= -single_module -undefined dynamic_lookup -dynamiclib \
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LIBCUSTCALC_SHLIB= -dynamiclib -undefined dynamic_lookup \
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-install_name ${LIBDIR}/libcustcalc${LIB_EXT_VERSION} \
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-current_version ${VERSION} \
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${ARCH_CFLAGS}
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endif # ($(SET_INSTALL_NAME),yes)
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# To reduce dependency chains under macOS, we remove functions and
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# data that are unreachable by the entry point or exported symbols.
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#
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LDFLAGS+= -Wl,-dead_strip
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# NOTE: Do not use: LDFLAGS+= -Wl,-dead_strip_dylibs
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#
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# This option should not be used when linking against a dylib which is
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# required at runtime for some indirect reason such as the dylib has an
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# important initializer. The libcalc and libcustcalc have
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# important initializers, and so this option should not be used.
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# static library option
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#
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CC_STATIC=
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LD_STATIC= ${ARCH_CFLAGS}
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LIBCALC_STATIC=
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LIBCUSTCALC_STATIC=
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# If you want to add flags to all compiler and linker
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# run (via ${COMMON_CFLAGS} and ${COMMON_LDFLAGS}),
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# set ${COMMON_ADD}.
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#
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# For example to use clang's -fsanitize for calc testing,
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# which requires a common set of flags to be passed to
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# every compile and link, then call make with:
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#
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# make .. COMMON_ADD='-fsanitize=undefined -fsanitize=address'
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#
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# This facility requires a Gnu Makefile, or a make command
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# that understands the += make operand.
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#
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COMMON_CFLAGS+= ${COMMON_ADD}
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COMMON_LDFLAGS+= ${COMMON_ADD}
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# common values set for this target
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#
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#CCWARN= -Wall
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CCWARN= -Wall -Wextra -pedantic
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@@ -201,24 +191,32 @@ WNO_LONG_LONG= -Wno-long-long
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CCWERR=
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CCOPT= ${DEBUG}
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CCMISC= ${ARCH_CFLAGS}
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#
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LCC= cc
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CC= ${PURIFY} ${LCC} ${CCWERR}
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#
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# Darwin dynamic shared lib filenames
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#
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LIB_EXT:= .dylib
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LIB_EXT_VERSION:= .${VERSION}${LIB_EXT}
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# LDCONFIG not required on this platform, so we redefine it to an empty string
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#
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LDCONFIG:=
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endif # ($(target),Darwin)
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##################
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# FreeBSD target #
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##################
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ifeq ($(target),FreeBSD)
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# default build type for this target
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#
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BLD_TYPE= calc-dynamic-only
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# target specific library parameters
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#
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CC_SHARE= -fPIC
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DEFAULT_LIB_INSTALL_PATH= ${PWD}:/lib:/usr/lib:${LIBDIR}:${PREFIX}/lib
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@@ -226,26 +224,13 @@ LD_SHARE= "-Wl,-rpath,${DEFAULT_LIB_INSTALL_PATH}" \
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"-Wl,-rpath-link,${DEFAULT_LIB_INSTALL_PATH}"
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LIBCALC_SHLIB= -shared "-Wl,-soname,libcalc${LIB_EXT_VERSION}"
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LIBCUSTCALC_SHLIB= -shared "-Wl,-soname,libcustcalc${LIB_EXT_VERSION}"
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#
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CC_STATIC=
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LD_STATIC=
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LIBCALC_STATIC=
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LIBCUSTCALC_STATIC=
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#
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# If you want to add flags to all compiler and linker
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# run (via ${COMMON_CFLAGS} and ${COMMON_LDFLAGS}),
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# set ${COMMON_ADD}.
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#
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# For example to use gcc's -Werror to force warnings
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# to become errors, call make with:
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#
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# make .. COMMON_ADD='-Werror'
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#
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# This facility requires a Gnu Makefile, or a make command
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# that understands the += make operand.
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#
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COMMON_CFLAGS+= ${COMMON_ADD}
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COMMON_LDFLAGS+= ${COMMON_ADD}
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# common values set for this target
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#
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#CCWARN= -Wall
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CCWARN= -Wall -Wextra -pedantic
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@@ -255,21 +240,28 @@ WNO_LONG_LONG= -Wno-long-long
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CCWERR=
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CCOPT= ${DEBUG}
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CCMISC=
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#
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LCC= gcc
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CC= ${PURIFY} ${LCC} ${CCWERR}
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# We must use gmake as the FreeBSD target because under some older
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# releases of FreeBSD, make not support conditional syntax.
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#
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MAKE= gmake
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#
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endif # ($(target),FreeBSD)
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##################
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# OpenBSD target #
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##################
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ifeq ($(target),OpenBSD)
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# default build type for this target
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#
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BLD_TYPE= calc-dynamic-only
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# default build type for this target
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#
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CC_SHARE= -fPIC
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DEFAULT_LIB_INSTALL_PATH= ${PWD}:/lib:/usr/lib:${LIBDIR}:${PREFIX}/lib
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@@ -277,26 +269,15 @@ LD_SHARE= "-Wl,-rpath,${DEFAULT_LIB_INSTALL_PATH}" \
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"-Wl,-rpath-link,${DEFAULT_LIB_INSTALL_PATH}"
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LIBCALC_SHLIB= -shared "-Wl,-soname,libcalc${LIB_EXT_VERSION}"
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LIBCUSTCALC_SHLIB= -shared "-Wl,-soname,libcustcalc${LIB_EXT_VERSION}"
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# static library option
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#
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CC_STATIC=
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LD_STATIC=
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LIBCALC_STATIC=
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LIBCUSTCALC_STATIC=
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#
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# If you want to add flags to all compiler and linker
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# run (via ${COMMON_CFLAGS} and ${COMMON_LDFLAGS}),
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# set ${COMMON_ADD}.
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#
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# For example to use gcc's -Werror to force warnings
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# to become errors, call make with:
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#
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# make .. COMMON_ADD='-Werror'
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#
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# This facility requires a Gnu Makefile, or a make command
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# that understands the += make operand.
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#
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COMMON_CFLAGS+= ${COMMON_ADD}
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COMMON_LDFLAGS+= ${COMMON_ADD}
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# common values set for this target
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#
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#CCWARN= -Wall
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CCWARN= -Wall -Wextra -pedantic
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@@ -314,13 +295,16 @@ MAKE= gmake
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#
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endif # ($(target),OpenBSD)
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#################
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# Cygwin target #
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#################
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ifeq ($(target),Cygwin)
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#
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BLD_TYPE= calc-static-only
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# target specific library parameters
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#
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CC_SHARE= -fPIC
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DEFAULT_LIB_INSTALL_PATH= ${PWD}:/lib:/usr/lib:${LIBDIR}:${PREFIX}/lib
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@@ -328,26 +312,15 @@ LD_SHARE= "-Wl,-rpath,${DEFAULT_LIB_INSTALL_PATH}" \
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"-Wl,-rpath-link,${DEFAULT_LIB_INSTALL_PATH}"
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LIBCALC_SHLIB= -shared "-Wl,-soname,libcalc${LIB_EXT_VERSION}"
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LIBCUSTCALC_SHLIB= -shared "-Wl,-soname,libcustcalc${LIB_EXT_VERSION}"
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# static library option
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#
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CC_STATIC=
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LIBCALC_STATIC=
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LIBCUSTCALC_STATIC=
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LD_STATIC=
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#
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# If you want to add flags to all compiler and linker
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# run (via ${COMMON_CFLAGS} and ${COMMON_LDFLAGS}),
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# set ${COMMON_ADD}.
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#
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# For example to use gcc's -Werror to force warnings
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# to become errors, call make with:
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#
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# make .. COMMON_ADD='-Werror'
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#
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# This facility requires a Gnu Makefile, or a make command
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# that understands the += make operand.
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#
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COMMON_CFLAGS+= ${COMMON_ADD}
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COMMON_LDFLAGS+= ${COMMON_ADD}
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# common values set for this target
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#
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#CCWARN= -Wall
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CCWARN= -Wall -Wextra -pedantic
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@@ -357,61 +330,11 @@ WNO_LONG_LONG= -Wno-long-long
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CCWERR=
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CCOPT= ${DEBUG}
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CCMISC=
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#
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LCC= cc
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CC= ${PURIFY} ${LCC} ${CCWERR}
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#
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endif # ($(target),Cygwin)
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#################
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# simple target #
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#################
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# NOTE: This is not a real host target. It is just a best
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# attempt is a generic host not otherwise found above.
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ifeq ($(target),simple)
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#
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BLD_TYPE= calc-static-only
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#
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CC_SHARE= -fPIC
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DEFAULT_LIB_INSTALL_PATH= ${PWD}:/lib:/usr/lib:${LIBDIR}:${PREFIX}/lib
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LD_SHARE= "-Wl,-rpath,${DEFAULT_LIB_INSTALL_PATH}" \
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"-Wl,-rpath-link,${DEFAULT_LIB_INSTALL_PATH}"
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LIBCALC_SHLIB= -shared "-Wl,-soname,libcalc${LIB_EXT_VERSION}"
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LIBCUSTCALC_SHLIB= -shared "-Wl,-soname,libcustcalc${LIB_EXT_VERSION}"
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#
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CC_STATIC=
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LD_STATIC=
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LIBCALC_STATIC=
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LIBCUSTCALC_STATIC=
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#
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#CCWARN= -Wall
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CCWARN= -Wall -Wextra -pedantic
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WNO_IMPLICT= -Wno-implicit
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WNO_ERROR_LONG_LONG= -Wno-error=long-long
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WNO_LONG_LONG= -Wno-long-long
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CCWERR=
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CCOPT= ${DEBUG}
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CCMISC=
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#
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LCC= cc
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CC= ${PURIFY} ${LCC} ${CCWERR}
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#
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# The simple makefile forces the use of static ${CC} flags
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#
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# ICFLAGS are given to ${CC} for intermediate programs used to help compile calc
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# CFLAGS are given to ${CC} for calc programs other than intermediate programs
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# ILDFLAGS for ${CC} in linking intermediate programs used to help compile calc
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# LDFLAGS for ${CC} in linking calc programs other than intermediate programs
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#
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ICFLAGS= ${COMMON_CFLAGS} ${CCBAN} ${CC_STATIC}
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CFLAGS= ${ICFLAGS} ${CCOPT}
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#
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ILDFLAGS= ${COMMON_LDFLAGS} ${LD_STATIC}
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LDFLAGS= ${LD_DEBUG} ${ILDFLAGS} ${LIBCALC_STATIC} ${LIBCUSTCALC_STATIC}
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#
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endif # ($(target),simple)
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###########################################
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# default target - (when target is empty) #
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@@ -421,8 +344,12 @@ endif # ($(target),simple)
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# host target matches.
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ifeq ($(target),)
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# default build type for this target
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#
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BLD_TYPE= calc-static-only
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# target specific library parameters
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#
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CC_SHARE= -fPIC
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DEFAULT_LIB_INSTALL_PATH= ${PWD}:/lib:/usr/lib:${LIBDIR}:${PREFIX}/lib
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@@ -430,12 +357,34 @@ LD_SHARE= "-Wl,-rpath,${DEFAULT_LIB_INSTALL_PATH}" \
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"-Wl,-rpath-link,${DEFAULT_LIB_INSTALL_PATH}"
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LIBCALC_SHLIB= -shared "-Wl,-soname,libcalc${LIB_EXT_VERSION}"
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LIBCUSTCALC_SHLIB= -shared "-Wl,-soname,libcustcalc${LIB_EXT_VERSION}"
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# static library option
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#
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CC_STATIC=
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LIBCALC_STATIC=
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LIBCUSTCALC_STATIC=
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LD_STATIC=
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# common values set for this target
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#
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#CCWARN= -Wall
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CCWARN= -Wall -Wextra -pedantic
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WNO_IMPLICT= -Wno-implicit
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WNO_ERROR_LONG_LONG= -Wno-error=long-long
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WNO_LONG_LONG= -Wno-long-long
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CCWERR=
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CCOPT= ${DEBUG}
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CCMISC=
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LCC= gcc
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CC= ${PURIFY} ${LCC} ${CCWERR}
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endif # ($(target),)
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###########################################
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# Set the default compile flags for ${CC} #
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###########################################
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# If you want to add flags to all compiler and linker
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||||
# run (via ${COMMON_CFLAGS} and ${COMMON_LDFLAGS}),
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||||
# set ${COMMON_ADD}.
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||||
@@ -450,23 +399,6 @@ LD_STATIC=
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#
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COMMON_CFLAGS+= ${COMMON_ADD}
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COMMON_LDFLAGS+= ${COMMON_ADD}
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#
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#CCWARN= -Wall
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CCWARN= -Wall -Wextra -pedantic
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WNO_IMPLICT= -Wno-implicit
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WNO_ERROR_LONG_LONG= -Wno-error=long-long
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WNO_LONG_LONG= -Wno-long-long
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CCWERR=
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CCOPT= ${DEBUG}
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CCMISC=
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#
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LCC= gcc
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CC= ${PURIFY} ${LCC} ${CCWERR}
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endif # ($(target),)
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###########################################
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# Set the default compile flags for ${CC} #
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###########################################
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# Required flags to compile C files for calc
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#
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