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authorPaul Eggert <eggert@cs.ucla.edu>2022-07-31 11:54:12 -0700
committerPaul Eggert <eggert@cs.ucla.edu>2022-07-31 12:00:28 -0700
commitd95df5028d37b6d347e3afcdb349c182b0a6ce4c (patch)
tree1b5b77de99bd4ceddae9c205dcd6e7e5f6d6bc4f
parent4e89da6e5d1d67e5a6652ada21f97ead079702f3 (diff)
downloadbison-d95df5028d37b6d347e3afcdb349c182b0a6ce4c.tar.gz
maint: improve Gnulib checking
* configure.ac: With --enable-gcc-warnings, #define lint, _FORTIFY_SOURCE, and GNULIB_PORT_CHECK, to better check Gnulib.
-rw-r--r--configure.ac10
1 files changed, 10 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 08ea7cdf..442874d6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -226,6 +226,16 @@ if test "$enable_gcc_warnings" = yes; then
gl_WARN_ADD([-Wno-deprecated], [WNO_DEPRECATED_CXXFLAGS])
CXXFLAGS=$save_CXXFLAGS
AC_LANG_POP([C++])
+
+ AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
+ AH_VERBATIM([FORTIFY_SOURCE],
+ [/* Enable compile-time and run-time bounds-checking, and some warnings,
+ without upsetting glibc 2.15+. */
+ #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
+ # define _FORTIFY_SOURCE 2
+ #endif
+ ])
+ AC_DEFINE([GNULIB_PORTCHECK], [1], [Enable some gnulib portability checks.])
fi