From c183f854a5bbb54c436ca397821ff9e6e3e9e507 Mon Sep 17 00:00:00 2001
From: Holger Freyther <zecke@selfish.org>
Date: Sun, 30 Apr 2006 23:11:30 +0000
Subject: packages/gcc/gcc-4.0.2:     HACK to workaround an issue in using gcc
 -E as cpp for the     cross compiler for libmudflap, libstdc++ and other
 libs.     AC_CHECK_HEADERS will think it can use host headers, we simply    
 hack around this for now

---
 .../gcc/gcc-4.0.2/zecke-host-cpp-ac-hack.patch     | 140 +++++++++++++++++++++
 packages/gcc/gcc_4.0.2.bb                          |   3 +-
 2 files changed, 142 insertions(+), 1 deletion(-)
 create mode 100644 packages/gcc/gcc-4.0.2/zecke-host-cpp-ac-hack.patch

diff --git a/packages/gcc/gcc-4.0.2/zecke-host-cpp-ac-hack.patch b/packages/gcc/gcc-4.0.2/zecke-host-cpp-ac-hack.patch
new file mode 100644
index 0000000000..3f26dce71f
--- /dev/null
+++ b/packages/gcc/gcc-4.0.2/zecke-host-cpp-ac-hack.patch
@@ -0,0 +1,140 @@
+gcc (AC_CHECK_HEADERS) is using $CPP to check if the header pass
+the precompiler, if compiling with $CC failed.
+Sadly $CC is xgcc of gcc, and $CPP is 'gcc -E'. And as you build
+on a glibc machine, precompiling of the headers (execinfo.h and
+iconv.h will succeed). As a dirty hack we will handle this case
+as failure.
+This fixes the libmudflap build for uclibc which lacks execinfo.h
+but has HAVE_EXECINFO_H defined
+
+Index: gcc-4.0.2/libmudflap/configure
+===================================================================
+--- gcc-4.0.2.orig/libmudflap/configure	2006-04-30 16:57:47.000000000 +0200
++++ gcc-4.0.2/libmudflap/configure	2006-04-30 17:00:59.000000000 +0200
+@@ -3719,6 +3719,8 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    # hack, hack, hack
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: $ac_header:     check for missing prerequisite headers?" >&5
+@@ -3731,6 +3733,8 @@
+ echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+     { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+ echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
++    { echo "$as_me:$LINENO: WARNING: $ac_header: Zecke says do not trust the wrong cpp! Ignoring." >&5
++echo "$as_me: WARNING: $ac_header: Zecke says do not trust the wrong cpp! Ignoring." >&2;}
+     (
+       cat <<\_ASBOX
+ ## ------------------------------------- ##
+Index: gcc-4.0.2/libstdc++-v3/configure
+===================================================================
+--- gcc-4.0.2.orig/libstdc++-v3/configure	2006-04-30 16:57:53.000000000 +0200
++++ gcc-4.0.2/libstdc++-v3/configure	2006-04-30 22:59:00.000000000 +0200
+@@ -30513,6 +30513,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
+@@ -30525,6 +30526,8 @@
+ echo "$as_me: WARNING: iconv.h: proceeding with the preprocessor's result" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h: in the future, the compiler will take precedence" >&5
+ echo "$as_me: WARNING: iconv.h: in the future, the compiler will take precedence" >&2;}
++    { echo "$as_me:$LINENO: WARNING: $ac_header: Zecke says do not trust the wrong cpp! Ignoring." >&5
++echo "$as_me: WARNING: $ac_header: Zecke says do not trust the wrong cpp! Ignoring." >&2;}
+     (
+       cat <<\_ASBOX
+ ## ----------------------------------------- ##
+@@ -53622,6 +53625,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
+@@ -75885,6 +75889,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
+@@ -78600,6 +78605,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
+@@ -80969,6 +80975,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
+@@ -83214,6 +83221,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
+@@ -86227,6 +86235,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
+@@ -88425,6 +88434,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
+@@ -90672,6 +90682,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
+@@ -93280,6 +93291,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
+@@ -94996,6 +95008,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
+@@ -97337,6 +97350,7 @@
+     ac_header_preproc=yes
+     ;;
+   no:yes:* )
++    ac_header_preproc=no
+     { echo "$as_me:$LINENO: WARNING: iconv.h: present but cannot be compiled" >&5
+ echo "$as_me: WARNING: iconv.h: present but cannot be compiled" >&2;}
+     { echo "$as_me:$LINENO: WARNING: iconv.h:     check for missing prerequisite headers?" >&5
diff --git a/packages/gcc/gcc_4.0.2.bb b/packages/gcc/gcc_4.0.2.bb
index af1145d600..540af1cb39 100644
--- a/packages/gcc/gcc_4.0.2.bb
+++ b/packages/gcc/gcc_4.0.2.bb
@@ -20,7 +20,8 @@ SRC_URI_append = " file://100-uclibc-conf.patch;patch=1   \
                    file://301-missing-execinfo_h.patch;patch=1 \
                    file://302-c99-snprintf.patch;patch=1  \
                    file://303-c99-complex-ugly-hack.patch;patch=1 \
-                   file://800-arm-bigendian.patch;patch=1 "
+                   file://800-arm-bigendian.patch;patch=1 \
+                   file://zecke-host-cpp-ac-hack.patch;patch=1 "
 
 
 include gcc4-build.inc
-- 
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