Changeset: 2133c16fb09f for MonetDB
URL: http://dev.monetdb.org/hg/MonetDB?cmd=changeset;node=2133c16fb09f
Modified Files:
configure.ag
Branch: Aug2011
Log Message:
fixed X_CFLAGS (--enable-strict) for clang (2.8) & gcc (< 4.5):
With clang 2.8 (no other tested) and gcc < 4.5 (tested
3.4.6, 4.2.1, 4.3.2, 4.4.4, 4.4.5, 4.5.1, 4.5.2),
"-Wunreachable-code" triggers numerous "will never be
executed" (at least) in our Mx and stream code, mostly (if
not all) false positives, though; thus, we do not use
"-Wunreachable-code" with clang 2.8 and gcc < 4.5 .
diffs (27 lines):
diff --git a/configure.ag b/configure.ag
--- a/configure.ag
+++ b/configure.ag
@@ -574,9 +574,22 @@ yes-*-*)
MCHECK_ADD_FLAG([-Wsync-nand])
MCHECK_ADD_FLAG([-Wjump-misses-init])
MCHECK_ADD_FLAG([-Wmissing-include-dirs])
- MCHECK_ADD_FLAG([-Wunreachable-code])
MCHECK_ADD_FLAG([-Wlogical-op])
+ dnl With clang 2.8 (no other tested) and gcc < 4.5 (tested
+ dnl 3.4.6, 4.2.1, 4.3.2, 4.4.4, 4.4.5, 4.5.1, 4.5.2),
+ dnl "-Wunreachable-code" triggers numerous "will never be
+ dnl executed" (at least) in our Mx and stream code, mostly (if
+ dnl not all) false positives, though; thus, we do not use
+ dnl "-Wunreachable-code" with clang 2.8 and gcc < 4.5 .
+ case "$CC-$gcc_ver" in
+ *clang*-2.8|*gcc*-[[0-3]].*|*gcc*-4.[[0-4]].*)
+ ;;
+ *)
+ MCHECK_ADD_FLAG([-Wunreachable-code])
+ ;;
+ esac
+
# The default configure invocation when doing an rpmbuild also uses this
MCHECK_ADD_FLAG([-Wp,-D_FORTIFY_SOURCE=2])
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