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authorPaul Eggert <eggert@cs.ucla.edu>2012-07-06 14:29:50 -0700
committerPaul Eggert <eggert@cs.ucla.edu>2012-07-06 14:29:50 -0700
commitf5c08e17670cfda756af96c569efa48324b43908 (patch)
tree3bc1549e247c201841b114e6aab640ba402bd64a
parentfee5959dd8b389bc222618a35b042a92a1358c21 (diff)
downloademacs-f5c08e17670cfda756af96c569efa48324b43908.tar.gz
* configure.in: Document --enable-gcc-warnings better.
-rw-r--r--ChangeLog3
-rw-r--r--configure.in6
2 files changed, 7 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index b85855511bc..dc70740d303 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,10 +1,13 @@
2012-07-06 Paul Eggert <eggert@cs.ucla.edu>
+ * configure.in: Document --enable-gcc-warnings better.
+
Use c_strcasecmp for ASCII case-insensitive comparison (Bug#11786).
This is safer than strcasecmp, which has unspecified behavior
outside the POSIX locale and in practice sometimes does not work
in multibyte locales. Similarly for c_strncasecmp and strncasecmp.
* configure.in (strcasecmp, strncasecmp): Remove checks.
+
* lib/c-ctype.c, lib/c-ctype.h, lib/c-strcase.h, lib/c-strcasecmp.c:
* lib/c-strncasecmp.c: New files, taken from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
diff --git a/configure.in b/configure.in
index 1a43aed7540..09551ae58e9 100644
--- a/configure.in
+++ b/configure.in
@@ -575,7 +575,9 @@ gl_EARLY
AC_ARG_ENABLE([gcc-warnings],
[AS_HELP_STRING([--enable-gcc-warnings],
- [turn on lots of GCC warnings (for developers)])],
+ [turn on lots of GCC warnings. This is intended for
+ developers, and may generate false alarms when used
+ with older or non-GNU development tools.])],
[case $enableval in
yes|no) ;;
*) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
@@ -597,7 +599,7 @@ if test "${enableval}" != "no"; then
LTO="-flto=$CPUS"
else
LTO="-flto"
- fi
+ fi
old_CFLAGS=$CFLAGS
CFLAGS="$CFLAGS $LTO"
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],