[updated zlib PATCH 1 of 3] complibs/zlib: add zlib support

[updated zlib PATCH 1 of 3] complibs/zlib: add zlib support

[Zhenqiang Chen]

# HG changeset patch
# User Zhenqiang Chen <zhenqiang.chen@linaro.org>
# Date 1322037095 -28800
# Node ID ffb01c946be470adbd63b2a2f4784bd01fa25771
# Parent  2f4e3c312b659422e4a9950f13a0fc507b97c1fd
complibs/zlib: add zlib as a companion library

Use our own version to remove dependence on system zlib
in case users want to run the binary toolchains on different systems.

e.g. build toolchains on a 32-bit system and run on a 64-bit system.

Signed-off-by: Zhenqiang Chen <zhenqiang.chen@linaro.org>

diff --git a/config/companion_libs.in b/config/companion_libs.in
--- a/config/companion_libs.in
+++ b/config/companion_libs.in
@@ -37,6 +37,9 @@
      select LIBELF
      select COMPLIBS_NEEDED

+config ZLIB_NEEDED
+    bool
+
  config COMPLIBS
      bool

diff --git a/patches/zlib/1.2.5/zlib-1.2.5.patch b/patches/zlib/1.2.5/zlib-1.2.5.patch
new file mode 100644
--- /dev/null
+++ b/patches/zlib/1.2.5/zlib-1.2.5.patch
@@ -0,0 +1,19 @@
+diff --git a/Makefile.in b/Makefile.in
+index 5b15bd0..6817b94 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -167,8 +167,12 @@ install-libs: $(LIBS)
+       -@if [ ! -d $(DESTDIR)$(sharedlibdir) ]; then mkdir -p $(DESTDIR)$(sharedlibdir); fi
+       -@if [ ! -d $(DESTDIR)$(man3dir)      ]; then mkdir -p $(DESTDIR)$(man3dir); fi
+       -@if [ ! -d $(DESTDIR)$(pkgconfigdir) ]; then mkdir -p $(DESTDIR)$(pkgconfigdir); fi
+-      cp $(STATICLIB) $(DESTDIR)$(libdir)
+-      cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir)
++      if [ "x$(STATICLIB)" != "x" ] && [ -e $(STATICLIB) ] ; then \
++              cp $(STATICLIB) $(DESTDIR)$(libdir) ; \
++      fi
++      if [ "x$(SHAREDLIBV)" != "x" ] && [ -e $(SHAREDLIBV) ] ; then \
++              cp $(SHAREDLIBV) $(DESTDIR)$(sharedlibdir) ; \
++      fi
+       cd $(DESTDIR)$(libdir); chmod u=rw,go=r $(STATICLIB)
+       -@(cd $(DESTDIR)$(libdir); $(RANLIB) libz.a || true) >/dev/null 2>&1
+       -@cd $(DESTDIR)$(sharedlibdir); if test "$(SHAREDLIBV)" -a -f $(SHAREDLIBV); then \
diff --git a/scripts/build/companion_libs/zlib.sh b/scripts/build/companion_libs/zlib.sh
new file mode 100644
--- /dev/null
+++ b/scripts/build/companion_libs/zlib.sh
@@ -0,0 +1,50 @@
+# This file adds the functions to build the ZLIB library
+# Copyright 2011 Michael Edwards
+# Licensed under the GPL v2. See COPYING in the root of this package
+
+do_zlib_get() { :; }
+do_zlib_extract() { :; }
+do_zlib() { :; }
+
+CT_ZLIB_VERSION="1.2.5"
+# Override functions depending on configuration
+if [ "${CT_ZLIB_NEEDED}" = "y" ]; then
+
+do_zlib_get() {
+    CT_GetFile "zlib-${CT_ZLIB_VERSION}" .tar.gz    \
+        http://sourceforge.net/projects/libpng/files
+}
+
+do_zlib_extract() {
+    CT_Extract "zlib-${CT_ZLIB_VERSION}"
+    CT_Patch "zlib" "${CT_ZLIB_VERSION}"
+}
+
+do_zlib() {
+    mkdir -p "${CT_BUILD_DIR}/build-zlib"
+    cd "${CT_BUILD_DIR}/build-zlib"
+
+    CT_DoStep INFO "Installing zlib"
+
+    cp -a "${CT_SRC_DIR}/zlib-${CT_ZLIB_VERSION}" "${CT_BUILD_DIR}/build-zlib"
+    CT_Pushd "${CT_BUILD_DIR}/build-zlib/zlib-${CT_ZLIB_VERSION}"
+
+    CT_DoLog EXTRA "Configuring zlib"
+
+    CT_DoExecLog CFG                                \
+    CFLAGS="${CT_CFLAGS_FOR_HOST}"                  \
+    CXXFLAGS="${CT_CFLAGS_FOR_HOST}"                \
+    ./configure  --prefix="${CT_COMPLIBS_DIR}/zlib" \
+        --static
+
+    CT_DoLog EXTRA "Building zlib"
+    CT_DoExecLog ALL make ${JOBSFLAGS}
+
+    CT_DoLog EXTRA "Installing zlib"
+    CT_DoExecLog ALL make install
+
+    CT_Popd
+    CT_EndStep
+}
+
+fi # CT_ZLIB_NEEDED
diff --git a/scripts/crosstool-NG.sh.in b/scripts/crosstool-NG.sh.in
--- a/scripts/crosstool-NG.sh.in
+++ b/scripts/crosstool-NG.sh.in
@@ -117,6 +117,7 @@
  . "${CT_LIB_DIR}/scripts/build/companion_libs/cloog.sh"
  . "${CT_LIB_DIR}/scripts/build/companion_libs/mpc.sh"
  . "${CT_LIB_DIR}/scripts/build/companion_libs/libelf.sh"
+. "${CT_LIB_DIR}/scripts/build/companion_libs/zlib.sh"
  . "${CT_LIB_DIR}/scripts/build/binutils/binutils.sh"
  . "${CT_LIB_DIR}/scripts/build/binutils/elf2flt.sh"
  . "${CT_LIB_DIR}/scripts/build/binutils/sstrip.sh"
@@ -527,6 +528,7 @@
      do_cloog_get
      do_mpc_get
      do_libelf_get
+    do_zlib_get
      do_binutils_get
      do_elf2flt_get
      do_sstrip_get
@@ -557,6 +559,7 @@
          do_cloog_extract
          do_mpc_extract
          do_libelf_extract
+        do_zlib_extract
          do_binutils_extract
          do_elf2flt_extract
          do_sstrip_extract
diff --git a/steps.mk b/steps.mk
--- a/steps.mk
+++ b/steps.mk
@@ -23,6 +23,7 @@
              cloog               \
              mpc                 \
              libelf              \
+            zlib                \
              binutils            \
              elf2flt             \
              sstrip              \

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