[OE-core] [PATCH 06/12] gnu-efi, syslinux: Support gcc < 4.7

[Khem Raj]

This helps compiling the code with older gcc especially on older build
hosts, additionally clang advertizes itself as gcc 4.2.1 so it helps
compiling dependent modues using clang as well

Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 .../gnu-efi/gnu-efi/gcc46-compatibility.patch      | 21 ++++++++++++
 meta/recipes-bsp/gnu-efi/gnu-efi_3.0.3.bb          |  1 +
 .../syslinux/0010-gcc46-compatibility.patch        | 37 ++++++++++++++++++++++
 meta/recipes-devtools/syslinux/syslinux_6.03.bb    |  1 +
 4 files changed, 60 insertions(+)
 create mode 100644 meta/recipes-bsp/gnu-efi/gnu-efi/gcc46-compatibility.patch
 create mode 100644 meta/recipes-devtools/syslinux/syslinux/0010-gcc46-compatibility.patch

diff --git a/meta/recipes-bsp/gnu-efi/gnu-efi/gcc46-compatibility.patch b/meta/recipes-bsp/gnu-efi/gnu-efi/gcc46-compatibility.patch
new file mode 100644
index 0000000..0ce6d7b
--- /dev/null
+++ b/meta/recipes-bsp/gnu-efi/gnu-efi/gcc46-compatibility.patch
@@ -0,0 +1,21 @@
+don't break with old compilers and -DGNU_EFI_USE_MS_ABI
+It's entirely legitimate to request GNU_EFI_USE_MS_ABI even if the current
+compiler doesn't support it, and gnu-efi should transparently fall back to
+using legacy techniques to set the calling convention.  We don't get type
+checking, but at least it will still compile.
+
+Author: Steve Langasek <steve.langasek at ubuntu.com>
+Upstream-Status: Pending
+Index: gnu-efi-3.0.3/inc/x86_64/efibind.h
+===================================================================
+--- gnu-efi-3.0.3.orig/inc/x86_64/efibind.h
++++ gnu-efi-3.0.3/inc/x86_64/efibind.h
+@@ -25,8 +25,6 @@ Revision History
+ #if defined(GNU_EFI_USE_MS_ABI)
+     #if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7))
+         #define HAVE_USE_MS_ABI 1
+-    #else
+-        #error Compiler is too old for GNU_EFI_USE_MS_ABI
+     #endif
+ #endif
+ 
diff --git a/meta/recipes-bsp/gnu-efi/gnu-efi_3.0.3.bb b/meta/recipes-bsp/gnu-efi/gnu-efi_3.0.3.bb
index 1a1ba40..eca3459 100644
--- a/meta/recipes-bsp/gnu-efi/gnu-efi_3.0.3.bb
+++ b/meta/recipes-bsp/gnu-efi/gnu-efi_3.0.3.bb
@@ -18,6 +18,7 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/${BPN}/${BP}.tar.bz2 \
            file://parallel-make-archives.patch \
            file://lib-Makefile-fix-parallel-issue.patch \
            file://gnu-efi-Make-setjmp.S-portable-to-ARM.patch \
+           file://gcc46-compatibility.patch \
           "
 
 SRC_URI[md5sum] = "15a4bcbc18a9a5e8110ed955970622e6"
diff --git a/meta/recipes-devtools/syslinux/syslinux/0010-gcc46-compatibility.patch b/meta/recipes-devtools/syslinux/syslinux/0010-gcc46-compatibility.patch
new file mode 100644
index 0000000..6279258
--- /dev/null
+++ b/meta/recipes-devtools/syslinux/syslinux/0010-gcc46-compatibility.patch
@@ -0,0 +1,37 @@
+don't break with old compilers and -DGNU_EFI_USE_MS_ABI
+It's entirely legitimate to request GNU_EFI_USE_MS_ABI even if the current
+compiler doesn't support it, and gnu-efi should transparently fall back to
+using legacy techniques to set the calling convention.  We don't get type
+checking, but at least it will still compile.
+
+Adapted from gnu-efi
+
+Author: Steve Langasek <steve.langasek at ubuntu.com>
+Upstream-Status: Pending
+
+Index: syslinux-6.03/efi64/include/efi/x86_64/efibind.h
+===================================================================
+--- syslinux-6.03.orig/efi64/include/efi/x86_64/efibind.h
++++ syslinux-6.03/efi64/include/efi/x86_64/efibind.h
+@@ -25,8 +25,6 @@ Revision History
+ #if defined(GNU_EFI_USE_MS_ABI)
+     #if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7))
+         #define HAVE_USE_MS_ABI 1
+-    #else
+-        #error Compiler is too old for GNU_EFI_USE_MS_ABI
+     #endif
+ #endif
+ 
+Index: syslinux-6.03/gnu-efi/gnu-efi-3.0/inc/x86_64/efibind.h
+===================================================================
+--- syslinux-6.03.orig/gnu-efi/gnu-efi-3.0/inc/x86_64/efibind.h
++++ syslinux-6.03/gnu-efi/gnu-efi-3.0/inc/x86_64/efibind.h
+@@ -25,8 +25,6 @@ Revision History
+ #if defined(GNU_EFI_USE_MS_ABI)
+     #if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7))
+         #define HAVE_USE_MS_ABI 1
+-    #else
+-        #error Compiler is too old for GNU_EFI_USE_MS_ABI
+     #endif
+ #endif
+ 
diff --git a/meta/recipes-devtools/syslinux/syslinux_6.03.bb b/meta/recipes-devtools/syslinux/syslinux_6.03.bb
index ef9ae2f..94077da 100644
--- a/meta/recipes-devtools/syslinux/syslinux_6.03.bb
+++ b/meta/recipes-devtools/syslinux/syslinux_6.03.bb
@@ -21,6 +21,7 @@ SRC_URI = "${KERNELORG_MIRROR}/linux/utils/boot/syslinux/syslinux-${PV}.tar.xz \
            file://0007-linux-syslinux-implement-ext_construct_sectmap_fs.patch \
            file://0008-libinstaller-syslinuxext-implement-syslinux_patch_bo.patch \
            file://0009-linux-syslinux-implement-install_bootblock.patch \
+           file://0010-gcc46-compatibility.patch \
            "
 
 SRC_URI[md5sum] = "92a253df9211e9c20172796ecf388f13"
-- 
2.5.2