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author | Daniel P. Berrange <berrange@redhat.com> | 2012-03-15 10:40:43 +0000 |
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committer | Daniel P. Berrange <berrange@redhat.com> | 2012-04-25 09:49:25 +0100 |
commit | d986fb466bb60c5e6229086261b6b3ed0b383d92 (patch) | |
tree | b309ef0a797a766cea504e2a2980f0dd2937f0a6 /m4/warnings.m4 | |
parent | 39565707a9b9b6460ca18c5c9749ae565d583e2a (diff) | |
download | spice-d986fb466bb60c5e6229086261b6b3ed0b383d92.tar.gz spice-d986fb466bb60c5e6229086261b6b3ed0b383d92.tar.xz spice-d986fb466bb60c5e6229086261b6b3ed0b383d92.zip |
Enable many more compiler warnings
* m4/manywarnings.m4m, m4/warnings.m4: Import GNULIB warnings
modules
* m4/spice-compile-warnings.m4: Define SPICE_COMPILE_WARNINGS
* configure.ac: Replace compile warning check with a call to
SPICE_COMPILE_WARNINGS
* client/Makefile.am: Use WARN_CXXFLAGS instead of WARN_CFLAGS
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Diffstat (limited to 'm4/warnings.m4')
-rw-r--r-- | m4/warnings.m4 | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/m4/warnings.m4 b/m4/warnings.m4 new file mode 100644 index 00000000..69d05a67 --- /dev/null +++ b/m4/warnings.m4 @@ -0,0 +1,37 @@ +# warnings.m4 serial 5 +dnl Copyright (C) 2008-2012 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +dnl From Simon Josefsson + +# gl_AS_VAR_APPEND(VAR, VALUE) +# ---------------------------- +# Provide the functionality of AS_VAR_APPEND if Autoconf does not have it. +m4_ifdef([AS_VAR_APPEND], +[m4_copy([AS_VAR_APPEND], [gl_AS_VAR_APPEND])], +[m4_define([gl_AS_VAR_APPEND], +[AS_VAR_SET([$1], [AS_VAR_GET([$1])$2])])]) + +# gl_WARN_ADD(PARAMETER, [VARIABLE = WARN_CFLAGS]) +# ------------------------------------------------ +# Adds parameter to WARN_CFLAGS if the compiler supports it. For example, +# gl_WARN_ADD([-Wparentheses]). +AC_DEFUN([gl_WARN_ADD], +dnl FIXME: gl_Warn must be used unquoted until we can assume +dnl autoconf 2.64 or newer. +[AS_VAR_PUSHDEF([gl_Warn], [gl_cv_warn_$1])dnl +AC_CACHE_CHECK([whether compiler handles $1], m4_defn([gl_Warn]), [ + gl_save_CPPFLAGS="$CPPFLAGS" + CPPFLAGS="${CPPFLAGS} $1" + AC_PREPROC_IFELSE([AC_LANG_PROGRAM([])], + [AS_VAR_SET(gl_Warn, [yes])], + [AS_VAR_SET(gl_Warn, [no])]) + CPPFLAGS="$gl_save_CPPFLAGS" +]) +AS_VAR_IF(gl_Warn, [yes], + [gl_AS_VAR_APPEND(m4_if([$2], [], [[WARN_CFLAGS]], [[$2]]), [" $1"])]) +AS_VAR_POPDEF([gl_Warn])dnl +m4_ifval([$2], [AS_LITERAL_IF([$2], [AC_SUBST([$2])], [])])dnl +]) |