Strip /usr/include from include flags, so we don't end up including

[samba.git] / source4 / build / m4 / public.m4

diff --git a/source4/build/m4/public.m4 b/source4/build/m4/public.m4
index d61e00b22ef926587374466e41a8b5aa7f3fadf7..732de1e20e0942afc6974e4f2745cab809cd3023 100644 (file)
--- a/source4/build/m4/public.m4
+++ b/source4/build/m4/public.m4
@@ -6,6 +6,8 @@ dnl Published under the GPL
 dnl
 dnl SMB_EXT_LIB_FROM_PKGCONFIG(name,pkg-config name,[ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND])
 dnl
+dnl SMB_INCLUDED_LIB_PKGCONFIG(name,pkg-config name,[ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND])
+dnl
 dnl SMB_EXT_LIB(name,libs,cflags,cppflags,ldflags)
 dnl
 dnl SMB_ENABLE(name,default_build)
@@ -90,18 +92,22 @@ AC_DEFUN([SMB_EXT_LIB_FROM_PKGCONFIG],
                                OLD_CFLAGS="$CFLAGS"
                                CFLAGS="$CFLAGS $$1_CFLAGS"
                                AC_MSG_CHECKING([that the C compiler can use the $1_CFLAGS])
-                               AC_TRY_RUN([#include "${srcdir-.}/build/tests/trivial.c"],
+                               AC_TRY_RUN([#include "${srcdir-.}/../tests/trivial.c"],
                                        SMB_ENABLE($1, YES)
                                        AC_MSG_RESULT(yes),
                                        AC_MSG_RESULT(no),
                                        AC_MSG_WARN([cannot run when cross-compiling]))
                                CFLAGS="$OLD_CFLAGS"
 
+                               ac_cv_$1_libs_only_other="`$PKG_CONFIG --libs-only-other '$2'` `$PKG_CONFIG --libs-only-L '$2'`"
+                               LIB_REMOVE_USR_LIB(ac_cv_$1_libs_only_other)
+                               ac_cv_$1_includedir_only="`$PKG_CONFIG --cflags-only-I '$2'`"
+                               CFLAGS_REMOVE_USR_INCLUDE(ac_cv_$1_includedir_only)
                                SMB_EXT_LIB($1, 
                                        [`$PKG_CONFIG --libs-only-l '$2'`], 
                                        [`$PKG_CONFIG --cflags-only-other '$2'`],
-                                       [`$PKG_CONFIG --cflags-only-I '$2'`],
-                                       [`$PKG_CONFIG --libs-only-other '$2'` `$PKG_CONFIG --libs-only-L '$2'`])
+                                       [$ac_cv_$1_includedir_only],
+                                       [$ac_cv_$1_libs_only_other])
                                ac_cv_$1_found=yes
 
                        else
@@ -125,6 +131,28 @@ AC_DEFUN([SMB_EXT_LIB_FROM_PKGCONFIG],
        fi
 ])
 
+dnl SMB_INCLUDED_LIB_PKGCONFIG(name,pkg-config name,[ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND])
+AC_DEFUN([SMB_INCLUDED_LIB_PKGCONFIG],
+[
+       AC_ARG_ENABLE([external-]translit($1,`A-Z',`a-z'),
+               AS_HELP_STRING([--enable-external-]translit($1,`A-Z',`a-z'), [Use external $1 instead of built-in (default=ifelse([$5],[],auto,$5))]), [], [enableval=ifelse([$5],[],auto,$5)])
+
+       if test $enableval = yes -o $enableval = auto; then
+               SMB_EXT_LIB_FROM_PKGCONFIG([$1], [$2], [$3], [
+                       if test $enableval = yes; then
+                               AC_MSG_ERROR([Unable to find external $1])
+                       fi
+                       enableval=no
+               ])
+       fi
+       if test $enableval = no; then
+               ifelse([$4], [], [
+                         SMB_EXT_LIB($1)
+                         SMB_ENABLE($1, NO)
+               ], [$4])
+       fi
+])
+
 dnl SMB_INCLUDE_MK(file)
 AC_DEFUN([SMB_INCLUDE_MK],
 [
@@ -133,6 +161,13 @@ mkinclude $1
 "
 ])
 
+dnl
+dnl SMB_EXT_LIB() just specifies the details of the library.
+dnl Note: the library isn't enabled by default.
+dnl You need to enable it with SMB_ENABLE(name) if configure
+dnl find it should be used. E.g. it should not be enabled
+dnl if the library is present, but the header file is missing.
+dnl
 dnl SMB_EXT_LIB(name,libs,cflags,cppflags,ldflags)
 AC_DEFUN([SMB_EXT_LIB],
 [
@@ -155,6 +190,14 @@ SMB_INFO_ENABLES="$SMB_INFO_ENABLES
 \$enabled{$1} = \"$2\";"
 ])
 
+dnl SMB_MAKE_SETTINGS(text)
+AC_DEFUN([SMB_MAKE_SETTINGS],
+[
+MAKE_SETTINGS="$MAKE_SETTINGS
+$1
+"
+])
+
 dnl SMB_WRITE_MAKEVARS(path, skip_vars)
 AC_DEFUN([SMB_WRITE_MAKEVARS],
 [
@@ -188,10 +231,18 @@ use strict;
 
 use vars qw(%enabled %config);
 
-%config = (AC_FOREACH([AC_Var], m4_defn([_AC_SUBST_VARS]), [
-       AC_Var => '$AC_Var',])
-);
+%config = (
+CEOF
+
+for ac_var in $ac_subst_vars
+do
+       eval ac_val=\$$ac_var
+       # quote ' (\x27) inside '...' and make sure \ isn't eaten by shells, so use perl:
+       QAC_VAL=$ac_val QAC_VAR=$ac_var perl -e '$myval="$ENV{QAC_VAL}"; $myval =~ s/\x27/\\\x27/g ; print $ENV{QAC_VAR}." => \x27$myval\x27,\n"' >> $1
+done
 
+cat >>$1<<CEOF
+);
 $SMB_INFO_ENABLES
 1;
 CEOF