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From 1a366eedc0eb4da46da48e9f6e2da27c7b5d2076 Mon Sep 17 00:00:00 2001
From: Gwendal Grignou <gwendal@chromium.org>
Date: Fri, 3 Jun 2016 09:17:28 -0700
Subject: [PATCH] Allow compiling xfsprogs in a cross compile environment.
Without this patch, we are using the same compiler and options for the host
compiler (BUILD_CC) and the target compiler (CC), and we would get error
messages at compilation:
x86_64-pc-linux-gnu-gcc -O2 -O2 -pipe -march=armv7-a -mtune=cortex-a15 ...
x86_64-pc-linux-gnu-gcc.real: error: unrecognized command line option
'-mfpu=neon'
'-mfloat-abi=hard'
'-clang-syntax'
'-mfpu=neon'
'-mfloat-abi=hard'
'-clang-syntax'
Add BUILD_CC and BUILD_CFLAGS as precious variables to allow setting it up
from the ebuild.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
---
configure | 26 +++++++++++++++++++++-----
configure.ac | 20 +++++++++++++++-----
include/builddefs.in | 6 ++++--
libxfs/Makefile | 4 ++--
4 files changed, 42 insertions(+), 14 deletions(-)
diff --git a/configure b/configure
index 325081f..863a447 100755
--- a/configure
+++ b/configure
@@ -700,6 +700,7 @@ libreadline
enable_blkid
enable_gettext
enable_shared
+BUILD_CFLAGS
BUILD_CC
CPP
LT_SYS_LIBRARY_PATH
@@ -806,7 +807,9 @@ LDFLAGS
LIBS
CPPFLAGS
LT_SYS_LIBRARY_PATH
-CPP'
+CPP
+BUILD_CC
+BUILD_CFLAGS'
# Initialize some variables set by options.
@@ -1456,6 +1459,9 @@ Some influential environment variables:
LT_SYS_LIBRARY_PATH
User-defined run-time library search path.
CPP C preprocessor
+ BUILD_CC C compiler for build tools
+ BUILD_CFLAGS
+ C compiler flags for build tools
Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.
@@ -11957,11 +11963,12 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
-if test $cross_compiling = no; then
- BUILD_CC="$CC"
-else
- for ac_prog in gcc cc
+if test "${BUILD_CC+set}" != "set"; then
+ if test $cross_compiling = no; then
+ BUILD_CC="$CC"
+ else
+ for ac_prog in gcc cc
do
# Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
@@ -12003,6 +12010,15 @@ fi
test -n "$BUILD_CC" && break
done
+ fi
+fi
+
+if test "${BUILD_CFLAGS+set}" != "set"; then
+ if test $cross_compiling = no; then
+ BUILD_CFLAGS="$CFLAGS"
+ else
+ BUILD_CFLAGS="-g -O2"
+ fi
fi
# Check whether --enable-shared was given.
diff --git a/configure.ac b/configure.ac
index d44438f..fc286b3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9,11 +9,21 @@ AC_PREFIX_DEFAULT(/usr)
AC_PROG_LIBTOOL
AC_PROG_CC
-if test $cross_compiling = no; then
- BUILD_CC="$CC"
- AC_SUBST(BUILD_CC)
-else
- AC_CHECK_PROGS(BUILD_CC, gcc cc)
+AC_ARG_VAR(BUILD_CC, [C compiler for build tools])
+if test "${BUILD_CC+set}" != "set"; then
+ if test $cross_compiling = no; then
+ BUILD_CC="$CC"
+ else
+ AC_CHECK_PROGS(BUILD_CC, gcc cc)
+ fi
+fi
+AC_ARG_VAR(BUILD_CFLAGS, [C compiler flags for build tools])
+if test "${BUILD_CFLAGS+set}" != "set"; then
+ if test $cross_compiling = no; then
+ BUILD_CFLAGS="$CFLAGS"
+ else
+ BUILD_CFLAGS="-g -O2"
+ fi
fi
AC_ARG_ENABLE(shared,
diff --git a/include/builddefs.in b/include/builddefs.in
index c2ca4cb..9ca57a6 100644
--- a/include/builddefs.in
+++ b/include/builddefs.in
@@ -27,6 +27,7 @@ MALLOCLIB = @malloc_lib@
LOADERFLAGS = @LDFLAGS@
LTLDFLAGS = @LDFLAGS@
CFLAGS = @CFLAGS@
+BUILD_CFLAGS = @BUILD_CFLAGS@
LIBRT = @librt@
LIBUUID = @libuuid@
@@ -150,7 +151,7 @@ PCFLAGS+= -DENABLE_BLKID
endif
-GCFLAGS = $(OPTIMIZER) $(DEBUG) \
+GCFLAGS = $(DEBUG) \
-DVERSION=\"$(PKG_VERSION)\" -DLOCALEDIR=\"$(PKG_LOCALE_DIR)\" \
-DPACKAGE=\"$(PKG_NAME)\" -I$(TOPDIR)/include -I$(TOPDIR)/libxfs
@@ -158,8 +159,9 @@ ifeq ($(ENABLE_GETTEXT),yes)
GCFLAGS += -DENABLE_GETTEXT
endif
+BUILD_CFLAGS += $(GCFLAGS) $(PCFLAGS)
# First, Global, Platform, Local CFLAGS
-CFLAGS += $(FCFLAGS) $(GCFLAGS) $(PCFLAGS) $(LCFLAGS)
+CFLAGS += $(FCFLAGS) $(OPTIMIZER) $(GCFLAGS) $(PCFLAGS) $(LCFLAGS)
include $(TOPDIR)/include/buildmacros
diff --git a/libxfs/Makefile b/libxfs/Makefile
index 873d4ec..8d728c0 100644
--- a/libxfs/Makefile
+++ b/libxfs/Makefile
@@ -111,7 +111,7 @@ default: crc32selftest ltdepend $(LTLIBRARY)
crc32table.h: gen_crc32table.c
@echo " [CC] gen_crc32table"
- $(Q) $(BUILD_CC) $(CFLAGS) -o gen_crc32table $<
+ $(Q) $(BUILD_CC) $(BUILD_CFLAGS) -o gen_crc32table $<
@echo " [GENERATE] $@"
$(Q) ./gen_crc32table > crc32table.h
@@ -122,7 +122,7 @@ crc32table.h: gen_crc32table.c
# disk.
crc32selftest: gen_crc32table.c crc32table.h crc32.c
@echo " [TEST] CRC32"
- $(Q) $(BUILD_CC) $(CFLAGS) -D CRC32_SELFTEST=1 crc32.c -o $@
+ $(Q) $(BUILD_CC) $(BUILD_CFLAGS) -D CRC32_SELFTEST=1 crc32.c -o $@
$(Q) ./$@
# set up include/xfs header directory
--
2.8.0.rc3.226.g39d4020
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