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add C compiler and C include checks for calc

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Fixed have_statfs optional executable file extension ${EXT{ in
the ${UTIL_PROGS} make variable.

Prevented the "fake boolean value" when <stdbool.h> is missing,
from complicating C compilers post c17 standard.

Test if <stdint.h> exists and set HAVE_STDINT_H accordingly
in have_stdint.h.  Added HAVE_STDINT_H to allow one to force
this value.

Test if <inttypes.h> exists and set HAVE_INTTYPES_H accordingly
in have_inttypes.h.  Added HAVE_INTTYPES_H to allow one to force
this value.

Added c_chk.c to check the compiler and C include for calc
requirements.  If you are unable to compile this program, or
if this program when compiles does not exit 0, then your C
compiler and/or C include fails to meet calc requirements.
Compilers that are at least c99 MUST be able to compile this
program such that when run will exit 0.

The "make hsrc" file will attempt to compile and run c_chk and
will warn if the C compiler and/or C include fails to meet
calc requirements.  The "make debug" system will run c_chk -c
to print information about the C compiler and C include.
Currently failure to compile cc_chk.c or c_chk exiting non-0
will just print "WARNING!!" strings to stderr.
This commit is contained in:
Landon Curt Noll
2023-08-21 03:10:39 -07:00
parent b0aa949ad5
commit 4fddf82106
6 changed files with 492 additions and 14 deletions
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24
Makefile.config
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@@ -717,6 +717,30 @@ HAVE_STDBOOL_H=
#HAVE_STDBOOL_H= YES
#HAVE_STDBOOL_H= NO
# Determine if we have the <stdint.h> include file.
#
# HAVE_STDINT_H= let the Makefile look for the include file
# HAVE_STDINT_H= YES assume that the include file exists
# HAVE_STDINT_H= NO assume that the include file does not exist
#
# When in doubt, leave HAVE_STDINT_H empty.
#
HAVE_STDINT_H=
#HAVE_STDINT_H= YES
#HAVE_STDINT_H= NO
# Determine if we have the <inttypes.h> include file.
#
# HAVE_INTTYPES_H= let the Makefile look for the include file
# HAVE_INTTYPES_H= YES assume that the include file exists
# HAVE_INTTYPES_H= NO assume that the include file does not exist
#
# When in doubt, leave HAVE_INTTYPES_H empty.
#
HAVE_INTTYPES_H=
#HAVE_INTTYPES_H= YES
#HAVE_INTTYPES_H= NO
# Determine if our compiler allows the unused attribute
#
# If HAVE_UNUSED is empty, this Makefile will run the have_unused program