--- /dev/null
+# Configure paths for GiNaC
+# Christian Bauer 12/1/99
+# stolen from Sam Lantinga
+# stolen from Manish Singh
+# stolen back from Frank Belew
+# stolen from Manish Singh
+# Shamelessly stolen from Owen Taylor
+
+dnl AM_PATH_GINAC([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
+dnl Test for GiNaC, and define GINACLIB_CPPFLAGS and GINACLIB_LIBS
+dnl
+AC_DEFUN(AM_PATH_GINAC,
+[dnl
+dnl Get the cppflags and libraries from the ginac-config script
+dnl
+AC_ARG_WITH(ginac-prefix,[ --with-ginac-prefix=PFX Prefix where GiNaC is installed (optional)],
+ ginac_prefix="$withval", ginac_prefix="")
+AC_ARG_WITH(ginac-exec-prefix,[ --with-ginac-exec-prefix=PFX Exec prefix where GiNaC is installed (optional)],
+ ginac_exec_prefix="$withval", ginac_exec_prefix="")
+AC_ARG_ENABLE(ginactest, [ --disable-ginactest Do not try to compile and run a test GiNaC program],
+ , enable_ginactest=yes)
+
+ if test x$ginac_exec_prefix != x ; then
+ ginac_args="$ginac_args --exec-prefix=$ginac_exec_prefix"
+ if test x${GINACLIB_CONFIG+set} != xset ; then
+ GINACLIB_CONFIG=$ginac_exec_prefix/bin/ginac-config
+ fi
+ fi
+ if test x$ginac_prefix != x ; then
+ ginac_args="$ginac_args --prefix=$ginac_prefix"
+ if test x${GINACLIB_CONFIG+set} != xset ; then
+ GINACLIB_CONFIG=$ginac_prefix/bin/ginac-config
+ fi
+ fi
+
+ AC_PATH_PROG(GINACLIB_CONFIG, ginac-config, no)
+ min_ginac_version=ifelse([$1], ,0.4.0,$1)
+ AC_MSG_CHECKING(for GiNaC - version >= $min_ginac_version)
+ no_ginac=""
+ if test "$GINACLIB_CONFIG" = "no" ; then
+ no_ginac=yes
+ else
+ GINACLIB_CPPFLAGS=`$GINACLIB_CONFIG $ginacconf_args --cppflags`
+ GINACLIB_LIBS=`$GINACLIB_CONFIG $ginacconf_args --libs`
+
+ ginac_major_version=`$GINACLIB_CONFIG $ginac_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+ ginac_minor_version=`$GINACLIB_CONFIG $ginac_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+ ginac_micro_version=`$GINACLIB_CONFIG $ginac_config_args --version | \
+ sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
+ if test "x$enable_ginactest" = "xyes" ; then
+ ac_save_CPPFLAGS="$CPPFLAGS"
+ ac_save_LIBS="$LIBS"
+ CPPFLAGS="$CPPFLAGS $GINACLIB_CPPFLAGS"
+ LIBS="$LIBS $GINACLIB_LIBS"
+dnl
+dnl Now check if the installed GiNaC is sufficiently new. (Also sanity
+dnl checks the results of ginac-config to some extent
+dnl
+ rm -f conf.ginactest
+ AC_TRY_RUN([
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ginac/ginac.h>
+
+char*
+my_strdup (char *str)
+{
+ char *new_str;
+
+ if (str)
+ {
+ new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
+ strcpy (new_str, str);
+ }
+ else
+ new_str = NULL;
+
+ return new_str;
+}
+
+int main ()
+{
+ int major, minor, micro;
+ char *tmp_version;
+
+ system ("touch conf.ginactest");
+
+ /* HP/UX 9 (%@#!) writes to sscanf strings */
+ tmp_version = my_strdup("$min_ginac_version");
+ if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
+ printf("%s, bad version string\n", "$min_ginac_version");
+ exit(1);
+ }
+
+ if (($ginac_major_version > major) ||
+ (($ginac_major_version == major) && ($ginac_minor_version > minor)) ||
+ (($ginac_major_version == major) && ($ginac_minor_version == minor) && ($ginac_micro_version >= micro)))
+ {
+ return 0;
+ }
+ else
+ {
+ printf("\n*** 'ginac-config --version' returned %d.%d.%d, but the minimum version\n", $ginac_major_version, $ginac_minor_version, $ginac_micro_version);
+ printf("*** of GiNaC required is %d.%d.%d. If ginac-config is correct, then it is\n", major, minor, micro);
+ printf("*** best to upgrade to the required version.\n");
+ printf("*** If ginac-config was wrong, set the environment variable GINACLIB_CONFIG\n");
+ printf("*** to point to the correct copy of ginac-config, and remove the file\n");
+ printf("*** config.cache before re-running configure\n");
+ return 1;
+ }
+}
+
+],, no_ginac=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
+ CPPFLAGS="$ac_save_CPPFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ if test "x$no_ginac" = x ; then
+ AC_MSG_RESULT(yes)
+ ifelse([$2], , :, [$2])
+ else
+ AC_MSG_RESULT(no)
+ if test "$GINACLIB_CONFIG" = "no" ; then
+ echo "*** The ginac-config script installed by GiNaC could not be found"
+ echo "*** If GiNaC was installed in PREFIX, make sure PREFIX/bin is in"
+ echo "*** your path, or set the GINACLIB_CONFIG environment variable to the"
+ echo "*** full path to ginac-config."
+ else
+ if test -f conf.ginactest ; then
+ :
+ else
+ echo "*** Could not run GiNaC test program, checking why..."
+ CPPFLAGS="$CFLAGS $GINACLIB_CPPFLAGS"
+ LIBS="$LIBS $GINACLIB_LIBS"
+ AC_TRY_LINK([
+#include <stdio.h>
+#include <ginac/ginac.h>
+], [ return 0; ],
+ [ echo "*** The test program compiled, but did not run. This usually means"
+ echo "*** that the run-time linker is not finding GiNaC or finding the wrong"
+ echo "*** version of GiNaC. If it is not finding GiNaC, you'll need to set your"
+ echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+ echo "*** to the installed location Also, make sure you have run ldconfig if that"
+ echo "*** is required on your system"
+ echo "***"
+ echo "*** If you have an old version installed, it is best to remove it, although"
+ echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
+ [ echo "*** The test program failed to compile or link. See the file config.log for the"
+ echo "*** exact error that occured. This usually means GiNaC was incorrectly installed"
+ echo "*** or that you have moved GiNaC since it was installed. In the latter case, you"
+ echo "*** may want to edit the ginac-config script: $GINACLIB_CONFIG" ])
+ CPPFLAGS="$ac_save_CPPFLAGS"
+ LIBS="$ac_save_LIBS"
+ fi
+ fi
+ GINACLIB_CPPFLAGS=""
+ GINACLIB_LIBS=""
+ ifelse([$3], , :, [$3])
+ fi
+ AC_SUBST(GINACLIB_CPPFLAGS)
+ AC_SUBST(GINACLIB_LIBS)
+ rm -f conf.ginactest
+])