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[configure.ac.warnings] Add -Wp,-D_FORTIFY_SOURCE=2 to warning flags

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It enables various checks in glibc and gcc preprocessor.
This commit is contained in:
Behdad Esfahbod 2008-09-19 18:43:43 -04:00
parent 54b60dadb9
commit 8ae8189327
1 changed files with 3 additions and 0 deletions
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3
build/configure.ac.warnings
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@ -19,6 +19,9 @@ dnl We also abuse the warning-flag facility to enable other compiler
dnl options. Namely, the following:
MAYBE_WARN="$MAYBE_WARN -fno-strict-aliasing"
dnl Also to turn various gcc/glibc-specific preprocessor checks
MAYBE_WARN="$MAYBE_WARN -Wp,-D_FORTIFY_SOURCE=2"
# invalidate cached value if MAYBE_WARN has changed
if test "x$cairo_cv_warn_maybe" != "x$MAYBE_WARN"; then
unset cairo_cv_warn_cflags