Rietveld Code Review Tool
Help | Bug tracker | Discussion group | Source code | Sign in
(15)

Unified Diff: configure.ac

Issue 27659: Check for the existence of crypt()
Patch Set: Created 3 years, 1 month ago
Use n/p to move between diff chunks; N/P to move between comments. Please Sign in to add in-line comments.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « no previous file | no next file » | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
--- a/configure.ac
+++ b/configure.ac
@@ -1684,16 +1684,36 @@ yes)
test -z "`$CC --version 2>/dev/null | grep 'Free Software Foundation'`"
then
BASECFLAGS="$BASECFLAGS -Wunreachable-code"
else
ac_cv_enable_unreachable_code_warning=no
fi
AC_MSG_RESULT($ac_cv_enable_unreachable_code_warning)
+ AC_MSG_CHECKING(if we can make implicit function declaration an error in $CC)
+ ac_save_cc="$CC"
+ CC="$CC -Werror=implicit-function-declaration"
+ AC_CACHE_VAL(ac_cv_enable_implicit_function_declaration_error,
+ AC_COMPILE_IFELSE(
+ [
+ AC_LANG_PROGRAM([[]], [[]])
+ ],[
+ ac_cv_enable_implicit_function_declaration_error=yes
+ ],[
+ ac_cv_enable_implicit_function_declaration_error=no
+ ]))
+ CC="$ac_save_cc"
+ AC_MSG_RESULT($ac_cv_enable_implicit_function_declaration_error)
+
+ if test $ac_cv_enable_implicit_function_declaration_error = yes
+ then
+ CFLAGS_NODIST="$CFLAGS_NODIST -Werror=implicit-function-declaration"
+ fi
+
# if using gcc on alpha, use -mieee to get (near) full IEEE 754
# support. Without this, treatment of subnormals doesn't follow
# the standard.
case $host in
alpha*)
BASECFLAGS="$BASECFLAGS -mieee"
;;
esac
« no previous file with comments | « no previous file | no next file » | no next file with comments »

RSS Feeds Recent Issues | This issue
This is Rietveld 894c83f36cb7+