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-rw-r--r--ChangeLog10
-rw-r--r--configure.in11
2 files changed, 19 insertions, 2 deletions
diff --git a/ChangeLog b/ChangeLog
index 02853b2dc0..62cc0b39c6 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,13 @@
+Fri Feb 15 22:21:37 2013 Akinori MUSHA <knu@iDaemons.org>
+
+ * configure.in: Fix a bug introduced in r38342 that the cflagspat
+ substitution is messed up by the way CFLAGS and optflags are
+ modified, which affected FreeBSD and NetBSD/amd64 when
+ configured to use libexecinfo. This bug resulted in CFLAGS and
+ CXXFLAGS in RbConfig::CONFIG having warnflags expanded in them,
+ forcing third-party C/C++ extensions to follow what warnflags
+ demands, like ANSI/ISO-C90 conformance. ref [Bug #7101]
+
Fri Feb 15 20:29:11 2013 Tanaka Akira <akr@fsij.org>
* ext/socket/sockport.h (SET_SIN_LEN): defined for strict-aliasing
diff --git a/configure.in b/configure.in
index e83cfb4897..64c7262f94 100644
--- a/configure.in
+++ b/configure.in
@@ -2421,8 +2421,15 @@ AS_CASE(["$target_cpu-$target_os"],
execinfo_frame_pointer=no
RUBY_TRY_CFLAGS(-fno-omit-frame-pointer, [execinfo_frame_pointer=yes])
if test "x$execinfo_frame_pointer" = xyes; then
- optflags="${optflags+$optflags }-fno-omit-frame-pointer"
- CFLAGS="$CFLAGS -fno-omit-frame-pointer"
+ # optflags must be manipulated very carefully. For the
+ # later cflagspat/cxxflagspat substitution to work, CFLAGS
+ # and CXXFLAGS must start exactly with the value of
+ # optflags.
+ CFLAGS="${CFLAGS# }"; CFLAGS="${CFLAGS#"$optflags "}"
+ CXXFLAGS="${CXXFLAGS# }"; CXXFLAGS="${CXXFLAGS#"$optflags "}"
+ RUBY_APPEND_OPTION(optflags, -fno-omit-frame-pointer)
+ CFLAGS=" $optflags $CFLAGS"
+ CXXFLAGS=" $optflags $CXXFLAGS"
fi
fi])
AC_CHECK_FUNCS(backtrace)