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List: buildroot
Subject: [Buildroot] [PATCH 5/6] squashfs: pass CFLAGS/LDFLAGS and add host-zlib dependency
From: thomas.petazzoni () free-electrons ! com (Thomas Petazzoni)
Date: 2010-02-26 8:14:35
Message-ID: be8a104c3cd65190e32aebcbc8430fb23c42361f.1267172039.git.thomas.petazzoni () free-electrons ! com
[Download RAW message or body]
Squashfs depends on host-zlib, so we add this as a dependency. As
host-zlib is installed in $(HOST_DIR), we must pass $(HOST_CFLAGS) and
$(HOST_LDFLAGS).
Unfortunately, if we pass CFLAGS=$(HOST_CFLAGS), we override the
CFLAGS defined in the Makefile, and the build fails. Therefore, we
borrow a patch from OpenEmbedded to fix this problem.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
---
.../squashfs/squashfs-4.0-build-system-fix.patch | 65 ++++++++++++++++++++
target/squashfs/squashfsroot.mk | 4 +-
2 files changed, 67 insertions(+), 2 deletions(-)
create mode 100644 target/squashfs/squashfs-4.0-build-system-fix.patch
diff --git a/target/squashfs/squashfs-4.0-build-system-fix.patch \
b/target/squashfs/squashfs-4.0-build-system-fix.patch new file mode 100644
index 0000000..7ba0ab9
--- /dev/null
+++ b/target/squashfs/squashfs-4.0-build-system-fix.patch
@@ -0,0 +1,65 @@
+Fix the build system so that CFLAGS can be overriden on the command
+line to pass additionnal -I options.
+
+Patch borrowed from OpenEmbedded.
+
+Index: squashfs-4.0/squashfs-tools/Makefile
+===================================================================
+--- squashfs-4.0.orig/squashfs-tools.orig/Makefile 2009-04-19 01:47:43.000000000 \
+0200 ++++ squashfs-4.0/squashfs-tools/Makefile 2009-04-19 01:52:36.000000000 +0200
+@@ -1,36 +1,48 @@
+ INSTALL_DIR = /usr/local/bin
+
+ INCLUDEDIR = .
++CFLAGS_R = -I$(INCLUDEDIR) -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE
++LIBS = -lz -lpthread
+
+ CFLAGS := -I$(INCLUDEDIR) -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_GNU_SOURCE \
-O2 +
+ all: mksquashfs unsquashfs
+
+ mksquashfs: mksquashfs.o read_fs.o sort.o swap.o pseudo.o
+- $(CC) mksquashfs.o read_fs.o sort.o swap.o pseudo.o -lz -lpthread -lm -o $@
++ $(CC) $(LDFLAGS) mksquashfs.o read_fs.o sort.o swap.o pseudo.o -lz -lpthread -lm \
-o $@ +
+ mksquashfs.o: mksquashfs.c squashfs_fs.h mksquashfs.h global.h sort.h \
squashfs_swap.h Makefile ++ $(CC) $(CFLAGS_R) $(CFLAGS) -c -o $@ $<
+
+ read_fs.o: read_fs.c squashfs_fs.h read_fs.h global.h squashfs_swap.h Makefile
++ $(CC) $(CFLAGS_R) $(CFLAGS) -c -o $@ $<
+
+ sort.o: sort.c squashfs_fs.h global.h sort.h Makefile
++ $(CC) $(CFLAGS_R) $(CFLAGS) -c -o $@ $<
+
+ swap.o: swap.c Makefile
++ $(CC) $(CFLAGS_R) $(CFLAGS) -c -o $@ $<
+
+ pseudo.o: pseudo.c pseudo.h Makefile
++ $(CC) $(CFLAGS_R) $(CFLAGS) -c -o $@ $<
+
+ unsquashfs: unsquashfs.o unsquash-1.o unsquash-2.o unsquash-3.o unsquash-4.o swap.o
+- $(CC) unsquashfs.o unsquash-1.o unsquash-2.o unsquash-3.o unsquash-4.o swap.o -lz \
-lpthread -lm -o $@ ++ $(CC) $(LDFLAGS) unsquashfs.o unsquash-1.o unsquash-2.o \
unsquash-3.o unsquash-4.o swap.o -lz -lpthread -lm -o $@ +
+-unsquashfs.o: unsquashfs.h unsquashfs.c squashfs_fs.h squashfs_swap.h \
squashfs_compat.h global.h Makefile ++unsquashfs.o: unsquashfs.c unsquashfs.h \
squashfs_fs.h squashfs_swap.h squashfs_compat.h global.h Makefile ++ $(CC) \
$(CFLAGS_R) $(CFLAGS) -c -o $@ $< +
+-unsquash-1.o: unsquashfs.h unsquash-1.c squashfs_fs.h squashfs_compat.h global.h \
Makefile ++unsquash-1.o: unsquash-1.c unsquashfs.h squashfs_fs.h squashfs_compat.h \
global.h Makefile ++ $(CC) $(CFLAGS_R) $(CFLAGS) -c -o $@ $<
+
+-unsquash-2.o: unsquashfs.h unsquash-2.c unsquashfs.h squashfs_fs.h \
squashfs_compat.h global.h Makefile ++unsquash-2.o: unsquash-2.c unsquashfs.h \
unsquashfs.h squashfs_fs.h squashfs_compat.h global.h Makefile ++ $(CC) $(CFLAGS_R) \
$(CFLAGS) -c -o $@ $< +
+-unsquash-3.o: unsquashfs.h unsquash-3.c squashfs_fs.h squashfs_compat.h global.h \
Makefile ++unsquash-3.o: unsquash-3.c unsquashfs.h squashfs_fs.h squashfs_compat.h \
global.h Makefile ++ $(CC) $(CFLAGS_R) $(CFLAGS) -c -o $@ $<
+
+-unsquash-4.o: unsquashfs.h unsquash-4.c squashfs_fs.h squashfs_swap.h global.h \
Makefile ++unsquash-4.o: unsquash-4.c unsquashfs.h squashfs_fs.h squashfs_swap.h \
global.h Makefile ++ $(CC) $(CFLAGS_R) $(CFLAGS) -c -o $@ $<
+
+ clean:
+ -rm -f *.o mksquashfs unsquashfs
diff --git a/target/squashfs/squashfsroot.mk b/target/squashfs/squashfsroot.mk
index ebb0cd2..63adc5c 100644
--- a/target/squashfs/squashfsroot.mk
+++ b/target/squashfs/squashfsroot.mk
@@ -18,9 +18,9 @@ $(SQUASHFS_DIR)/.unpacked: $(DL_DIR)/$(SQUASHFS_SOURCE) \
#$(SQUASHFS_PATCH) touch $@
$(SQUASHFS_DIR)/squashfs-tools/mksquashfs: $(SQUASHFS_DIR)/.unpacked
- $(MAKE) -C $(SQUASHFS_DIR)/squashfs-tools
+ $(MAKE) CFLAGS="$(HOST_CFLAGS)" LDFLAGS="$(HOST_LDFLAGS)" -C \
$(SQUASHFS_DIR)/squashfs-tools
-squashfs: $(SQUASHFS_DIR)/squashfs-tools/mksquashfs
+squashfs: host-zlib $(SQUASHFS_DIR)/squashfs-tools/mksquashfs
squashfs-source: $(DL_DIR)/$(SQUASHFS_SOURCE)
--
1.6.3.3
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