Fix calc(1) man page install uncer macOS

BUGS

@@ -116,8 +116,6 @@ of a context diff patch).
 
 Known bugs in calc:
 
-    Under macOS, the installation of the calc man page fails.
-
     The output of the alg_config.cal resource file is bogus.
     We would welcome a replacement for this code.
 

CHANGES

@@ -25,6 +25,8 @@ The following are the changes from calc version 2.12.9.2 to date:
 
 	# SRC: ... some message about the origin ...
 
+    Fixed how the calc(1) man page is installed under macOS.
+
 
 The following are the changes from calc version 2.12.8.2 to 2.12.9.1:
 

HOWTO.INSTALL

@@ -4,7 +4,7 @@ IMPORTANT: Please see the section at the bottom of this file for
 
 Installing calc from the bzip2-ed tarball in 4 easy steps:
 
-    0)  If your platform supports i686 RPMs, you may want to go to:
+    (0)  If your platform supports i686 RPMs, you may want to go to:
 
 	    http://www.isthe.com/chongo/src/calc/
 
@@ -29,7 +29,7 @@ Installing calc from the bzip2-ed tarball in 4 easy steps:
 		cd /var/tmp
 		bunzip2 -c /usr/src/redhat/SOURCES/calc-*.tar.bz2 | tar -xvf -
 
-    1)	Look at the makefile, and adjust it to suit your needs.
+    (1)	Look at the makefile, and adjust it to suit your needs.
 
 	The top level Makefile and the custom/Makefile require a GNU
 	Make (such as gmake) or an equivalently advanced make.	On many
@@ -152,7 +152,7 @@ Installing calc from the bzip2-ed tarball in 4 easy steps:
 
 	   Adjust other Makefile variables as needed.
 
-    2)	build calc:
+    (2)	build calc:
 
 	The top level Makefile and the custom/Makefile require a GNU
 	Make (such as gmake) or an equivalently advanced make.	On many
@@ -184,7 +184,7 @@ Installing calc from the bzip2-ed tarball in 4 easy steps:
 		make clobber
 		make calc-dynamic-only BLD_TYPE=calc-dynamic-only
 
-    3)	test calc:
+    (3)	test calc:
 
 	make check
 
@@ -195,7 +195,7 @@ Installing calc from the bzip2-ed tarball in 4 easy steps:
 
 		make chk
 
-    4)	install calc:
+    (4)	install calc:
 
 	make install
 
@@ -369,6 +369,8 @@ custom/Makefile
 	... these go inbetween custom/Makefile.head and custom/Makefile.tail
 	# end of host target cut
 
+    NOTE: The clobber rule does not remove this file. - XXX
+
 custom/Makefile.simple
 
     # SRC: non-GNU Makefile via make -f Makefile custom/Makefile.simple

Makefile

@@ -35,6 +35,11 @@
 # calculator by David I. Bell with help/mods from others
 # Makefile by Landon Curt Noll
 
+# Try uname -s if the target was not already set on the make command line
+#
+ifeq ($(target),)
+target=$(shell uname -s 2>/dev/null)
+endif
 
 # The shell used by this Makefile
 #
@@ -53,10 +58,15 @@
 #
 #	SHELL= /bin/zsh
 #
-#SHELL= /bin/sh
+ifeq ($(target),Darwin)
+SHELL= /bin/zsh
+else
 SHELL= /bin/bash
-#SHELL= /bin/zsh
+endif
 
+##############################################################################
+#-=-=-=-=-=-=-=-=- You may want to change some values below -=-=-=-=-=-=-=-=-#
+##############################################################################
 
 # CCBAN is given to ${CC} in order to control if banned.h is in effect.
 #
@@ -93,17 +103,16 @@ SHELL= /bin/bash
 CCBAN= -UUNBAN
 #CCBAN= -DUNBAN
 
-
+# where man section 1 pages are installed
-# Try uname -s if the target was not already set on the make command line
 #
-ifeq ($(target),)
+#if 0	/* start of skip for non-Gnu makefiles */
-target=$(shell uname -s 2>/dev/null)
+ifeq ($(target),Darwin)
+MANDIR= /usr/local/share/man/man1
+else
+MANDIR= /usr/share/man/man1
+#if 0	/* start of skip for non-Gnu makefiles */
 endif
 
-##############################################################################
-#-=-=-=-=-=-=-=-=- You may want to change some values below -=-=-=-=-=-=-=-=-#
-##############################################################################
-
 # Determine of the GNU-readline facility will be used instead of the
 # built-in calc binding method.
 #
@@ -129,12 +138,6 @@ endif
 #READLINE_INCLUDE= -I/usr/gnu/include
 #READLINE_INCLUDE= -I/usr/local/include
 
-# Where man pages are installed
-#
-# Under macOS, we cannot modify /usr/share/man.
-#
-MANDIR= /usr/local/man/man1
-
 # Normally certain files depend on the Makefile.  If the Makefile is
 # changed, then certain steps should be redone.	 If MAKE_FILE is
 # set to Makefile, then these files will depend on Makefile.  If

Makefile.ship

@@ -58,6 +58,26 @@ SHELL= /bin/sh
 #SHELL= /bin/zsh
 
 
+#if 0	/* start of skip for non-Gnu makefiles */
+##############################################################################
+#-=-=-=-=-=-=-=-=- Identify the target machine, if possible -=-=-=-=-=-=-=-=-#
+##############################################################################
+
+# NOTE: You can force a target value by defining target as in:
+#
+#	make ...__optional_arguments_... target=value
+
+# Try uname -s if the target was not already set on the make command line
+#
+ifeq ($(target),)
+target=$(shell uname -s 2>/dev/null)
+endif
+#endif	/* end of skip for non-Gnu makefiles */
+
+##############################################################################
+#-=-=-=-=-=-=-=-=- You may want to change some values below -=-=-=-=-=-=-=-=-#
+##############################################################################
+
 # CCBAN is given to ${CC} in order to control if banned.h is in effect.
 #
 # The banned.h attempts to ban the use of certain dangerous functions
@@ -93,27 +113,6 @@ SHELL= /bin/sh
 CCBAN= -UUNBAN
 #CCBAN= -DUNBAN
 
-
-#if 0	/* start of skip for non-Gnu makefiles */
-##############################################################################
-#-=-=-=-=-=-=-=-=- Identify the target machine, if possible -=-=-=-=-=-=-=-=-#
-##############################################################################
-
-# NOTE: You can force a target value by defining target as in:
-#
-#	make ...__optional_arguments_... target=value
-
-# Try uname -s if the target was not already set on the make command line
-#
-ifeq ($(target),)
-target=$(shell uname -s 2>/dev/null)
-endif
-#endif	/* end of skip for non-Gnu makefiles */
-
-##############################################################################
-#-=-=-=-=-=-=-=-=- You may want to change some values below -=-=-=-=-=-=-=-=-#
-##############################################################################
-
 # Determine the type of terminal controls that you want to use
 #
 #	value		  meaning