There is a default pjsip package in the openwrt but it links to the extension package of ltq-tapi and oss. What I need first is the package without extra packages. So I try to create the libraries using the latest version 2.1 for the experiment.
First, the Makefile of the package:
include $(TOPDIR)/rules.mk
PKG_NAME:=pjsip2
PKG_VERSION:=2.1
PKG_RELEASE:=0
PKG_SOURCE:=pjproject-$(PKG_VERSION).tar.bz2
PKG_SOURCE_URL:=http://www.pjsip.org/release/$(PKG_VERSION)/
PKG_MD5SUM:=310eb63638dac93095f6a1fc8ee1f578
PKG_INSTALL:=1
PKG_BUILD_PARALLEL:=1
PKG_BUILD_DIR:=$(BUILD_DIR)/pjproject-$(PKG_VERSION).$(PKG_RELEASE)
include $(INCLUDE_DIR)/package.mk
define Package/pjsip2
SECTION:=lib
CATEGORY:=Libraries
URL:=http://www.pjsip.org/
MAINTAINER:=John Crispin <[email protected]>
TITLE:=pjsip2
DEPENDS:=+libuuid
endef
CONFIGURE_ARGS += \
--disable-floating-point \
--disable-g711-codec \
--disable-l16-codec \
--disable-g722-codec \
--disable-g7221-codec \
--disable-gsm-codec \
--disable-ilbc-coder \
--disable-libsamplerate \
--disable-ipp \
--disable-ssl \
--disable-oss \
--disable-sound
define Build/Configure
(cd $(PKG_BUILD_DIR); autoconf aconfigure.ac > aconfigure)
$(call Build/Configure/Default)
endef
define Build/Compile
CFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS) $(TARGET_CPPFLAGS) $(EXTRA_CPPFLAGS)" \
CXXFLAGS="$(TARGET_CFLAGS) $(EXTRA_CFLAGS) $(TARGET_CPPFLAGS) $(EXTRA_CPPFLAGS)" \
LDFLAGS="$(TARGET_LDFLAGS) -lc $(LIBGCC_S) -lm" \
$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR)
endef
define Build/InstallDev
$(INSTALL_DIR) $(1)/usr/pjsip2
$(CP) $(PKG_INSTALL_DIR)/usr $(1)/usr/pjsip2
endef
$(eval $(call BuildPackage,pjsip2))
We encounter the following problem:
arm-openwrt-linux-uclibcgnueabi-ar: supported targets: elf32-littlearm elf32-bigarm elf32-little elf32-big srec symbolsrec verilog tekhex binary ihex
make[5]: *** [../lib/libpj-arm-openwrt-linux-gnu.a] Error 1
We need to patch aconfigure.ac as follows:
--- pjproject-2.1.0.orig/aconfigure.ac
+++ pjproject-2.1.0/aconfigure.ac
@@ -48,9 +48,8 @@
CROSS_COMPILE=`echo ${CC} | sed 's/gcc//'`
fi
-if test "$AR" = ""; then AR="${CROSS_COMPILE}ar rv"; fi
+AR="${AR} rv"
AC_SUBST(AR)
-if test "$LD" = ""; then LD="$CC"; fi
AC_SUBST(LD)
A new error then occurs:
arm-openwrt-linux-uclibcgnueabi-ld: cannot find libgcc.a
Check the toolchain build_dir in OpenWrt and copy libgcc.a into staging_dir/toolchain/lib. The error is resolved and the package can then be successfully built.
There are additional tasks to be done if we want to integrate with private audio and video modules.
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