configure.ac (ACX_PROG_CC_WARNING_OPTS): add -Wmissing-format-attribute.

[gcc.git] / libcpp / configure.ac

diff --git a/libcpp/configure.ac b/libcpp/configure.ac
index b56a7443619038093d3cb36fd414011b460f59a5..9a000bd04cb4aa83d4b33780d9ed8abc92a7a507 100644 (file)
--- a/libcpp/configure.ac
+++ b/libcpp/configure.ac
@@ -22,13 +22,18 @@ AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])
 # See config/warnings.m4 for details.
 
 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
-                         -Wmissing-prototypes -Wold-style-definition])
+                         -Wmissing-prototypes -Wold-style-definition \
+                         -Wmissing-format-attribute])
 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
 
 # Only enable with --enable-werror-always until existing warnings are
 # corrected.
 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
 
+# Dependency checking.
+ZW_CREATE_DEPDIR
+ZW_PROG_COMPILER_DEPENDENCIES([CC])
+
 # Checks for header files.
 AC_HEADER_TIME
 ACX_HEADER_STRING
@@ -50,7 +55,8 @@ define(libcpp_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
   fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
   putchar_unlocked putc_unlocked)
 AC_CHECK_FUNCS(libcpp_UNLOCKED_FUNCS)
-AC_CHECK_DECLS(m4_split(m4_normalize(abort basename errno getopt libcpp_UNLOCKED_FUNCS)))
+AC_CHECK_DECLS(m4_split(m4_normalize(abort asprintf basename errno getopt \
+  libcpp_UNLOCKED_FUNCS vasprintf)))
 
 # Checks for library functions.
 AC_FUNC_ALLOCA