Re: Issues with cross-compiling

[Glen Huang <heyhgl () gmail com>]

This is really helpful, I managed to build without errors with this patch.

Thanks a lot.

Glen

> On Jan 18, 2022, at 7:25 AM, Jaap Keuter <jaap.keuter () xs4all nl> wrote:
>
> Hi,
>
> Maybe buildroot can give some inspiration:
>
> https://git.buildroot.net/buildroot/tree/package/wireshark
>
> Thanks,
> Jaap
>
> > On 17 Jan 2022, at 03:01, Glen Huang <heyhgl () gmail com> wrote:
> >
> > Hi,
> >
> > I’m trying to create an OpenWrt package for Wireshark.
> >
> > I think I’m pretty close. However, I got stuck at lemon, which if I’m not wrong, should be compiled by my build 
> > machine’s compiler. From the source code, I found out it supports the LEMON_C_COMPILER variable, which I assigned 
> > with the build machine’s compiler, but after compiling, CMAKE used the target platform’s linking flags for linking, 
> > which apparently failed. I’m not very familiar with CMAKE, so would appreciate some help.
> >
> > Cross-compiling has cropped up here a few times in the past decades, but the ones I managed to find are all 
> > pertaining to Wireshark’s autotools era, so they’re not particularly helpful, at least for my limited knowledge in 
> > this area.
> >
> > Here is the OpenWrt package’s Makefile I have come up with so far:
> >
> > include $(TOPDIR)/rules.mk
> >
> > PKG_NAME:=wireshark
> > PKG_VERSION:=3.6.1
> > PKG_RELEASE:=1
> >
> > PKG_SOURCE_URL:=https://www.wireshark.org/download/src/
> > PKG_SOURCE:=wireshark-$(PKG_VERSION).tar.xz
> > PKG_HASH:=0434eda8fb6bf88e2b42a67eb5d1de254a67d505bec3bb51fee9d7cad7925a38
> >
> > PKG_BUILD_PARALLEL:=1
> > CMAKE_INSTALL:=1
> >
> > include $(INCLUDE_DIR)/package.mk
> > include $(INCLUDE_DIR)/cmake.mk
> >
> > define Package/wireshark
> > SECTION:=net
> > CATEGORY:=Network
> > TITLE:=Network protocol analyzer
> > URL:=https://www.wireshark.org/
> > DEPENDS:=+libpcap +glib2 +libgcrypt +libcares
> > endef
> >
> > define Package/wireshark/description
> >       Network protocol analyzer
> > endef
> >
> > CMAKE_OPTIONS += \
> >       -DCMAKE_CROSSCOMPILING=1 \
> >       -DHAVE_C99_VSNPRINTF=TRUE \
> >       -DLEMON_C_COMPILER=$(CMAKE_HOST_C_COMPILER) \
> >       -DBUILD_wireshark=OFF \
> >       -DBUILD_androiddump=OFF \
> >       -DBUILD_ciscodump=OFF \
> >       -DBUILD_idl2wrs=OFF
> >
> > define Package/wireshark/install
> >       # figure out later
> > endef
> >
> > $(eval $(call BuildPackage,wireshark))
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>
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