configure: enable -Wstrict-prototypes unconditionally

[babeltrace.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index 91d82300db976c4f8bee1dc2be525e4d3f5798c1..63eef1bcf611f16ff7103c8f0cb891f30882fdfc 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -417,15 +417,6 @@ AM_CONDITIONAL([ENABLE_PYTHON_COMMON_DEPS], [test "x$enable_python_bindings" = x
 
 # Set defines for optionnal features conditionnals in the source code
 
-## jgalar: still used?
-AS_IF([test "x$enable_python_plugins" = xyes],
-  [AC_DEFINE([PYTHON_PLUGINS], [1], [Python plugin support.])]
-)
-
-AS_IF([test "x$enable_debug_info" = xyes],
-  [AC_DEFINE([ENABLE_DEBUG_INFO], [1], [Define to 1 if you enable the 'debug info' feature])]
-)
-
 AS_IF([test "x$enable_built_in_plugins" = xyes],
   [AC_DEFINE([BT_BUILT_IN_PLUGINS], [1], [Define to 1 to register plug-in attributes in static executable sections])]
 )
@@ -675,7 +666,6 @@ CFLAGS=${save_CFLAGS}
 AX_APPEND_COMPILE_FLAGS([ dnl
                -Wall dnl
                -Wextra dnl
-               -Wstrict-prototypes dnl
                -Wmissing-prototypes dnl
                -Wmissing-declarations dnl
                -Wnull-dereference dnl
@@ -723,15 +713,13 @@ AS_IF([test "x$enable_Werror" = "xyes"],
 )
 
 # The test used in AX_APPEND_COMPILE_FLAGS, generated using AC_LANG_PROGRAM, is
-# written in such a way that it triggers a -Wold-style-definition warning.  So
-# this warning always ends up disabled if we put it there, because the test
-# program does not build.
+# written in such a way that it triggers warnings with the following warning
+# flags.  So they would always end up disabled if we put them there, because
+# the test program would not build.
 #
-# Enable it here unconditionally.  It is supported by GCC >= 4.8 and by Clang
-# (it is accepted for compatibility although it has no effect), and there is
-# not reason to not want it.
-
-WARN_CFLAGS="${WARN_CFLAGS} -Wold-style-definition"
+# Enable them here unconditionally.  They are supported by GCC >= 4.8 and by
+# Clang >= 4.0.
+WARN_CFLAGS="${WARN_CFLAGS} -Wold-style-definition -Wstrict-prototypes"
 
 # CFLAGS from AX_APPEND_COMPILE_FLAGS.
 AM_CFLAGS="${AM_CFLAGS} ${WARN_CFLAGS}"