c2e4924597
This change is fixing the bug reported in [1].
Cmake may run pkg-config to find the dependencies when configuring a
package. Because of the value of PATH, and it will use the Buildroot's
pkg-config wrapper, which, by default, is configured (via some
environment variables) to find the target dependencies.
When configuring a host package using cmake, to prevent cmake from
wrongly solving dependencies from the target tree (when the
*-config.cmake files are using pkg-config) instead of looking for them
in the Buildroot's host tree or in the host system itself, we need to
set the environment variables altering the pkg-config behavior in the
cmake configure environment.
So, this change is fixing the cmake host-packages configuration step,
by properly setting the pkg-config environment variables to their values
for finding host dependencies.
Before this patch:
make O=/opt/br/abo/cmake-host-find-root-path libxml2 host-mariadb{-dirclean,-configure} && echo $?
[...]
>>> host-mariadb 10.1.25 Configuring
(mkdir -p /opt/br/abo/cmake-host-find-root-path/build/host-mariadb-10.1.25/ && cd /opt/br/abo/cmake-host-find-root-path/build/host-mariadb-10.1.25/ && rm -f CMakeCache.txt && PATH="/opt/br/abo/cmake-host-find-root-path/host/bin:/opt/br/abo/cmake-host-find-root-path/host/sbin:/home/sam/.local/bin:/sbin:/usr/sbin:/bin:/usr/bin" /usr/bin/cmake /opt/br/abo/cmake-host-find-root-path/build/host-mariadb-10.1.25/ -DCMAKE_INSTALL_SO_NO_EXE=0 -DCMAKE_FIND_ROOT_PATH="/opt/br/abo/cmake-host-find-root-path/host" -DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM="BOTH" -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY="BOTH" -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE="BOTH" -DCMAKE_INSTALL_PREFIX="/opt/br/abo/cmake-host-find-root-path/host" -DCMAKE_C_FLAGS="-O2 -I/opt/br/abo/cmake-host-find-root-path/host/include" -DCMAKE_CXX_FLAGS="-O2 -I/opt/br/abo/cmake-host-find-root-path/host/include" -DCMAKE_EXE_LINKER_FLAGS="-L/opt/br/abo/cmake-host-find-root-path/host/lib -Wl,-rpath,/opt/br/abo/cmake-host-find-root-path/host/lib"
-DCMAKE_ASM_COMPILER="/usr/bin/as" -DCMAKE_C_COMPILER="/usr/bin/gcc" -DCMAKE_CXX_COMPILER="/usr/bin/g++" -DCMAKE_C_COMPILER_ARG1="" -DCMAKE_CXX_COMPILER_ARG1="" -DCMAKE_COLOR_MAKEFILE=OFF -DBUILD_DOC=OFF -DBUILD_DOCS=OFF -DBUILD_EXAMPLE=OFF -DBUILD_EXAMPLES=OFF -DBUILD_TEST=OFF -DBUILD_TESTS=OFF -DBUILD_TESTING=OFF -DWITH_SSL=bundled )
-- Running cmake version 3.8.2
[...]
-- Found PkgConfig: /opt/br/abo/cmake-host-find-root-path/host/bin/pkg-config (found version "0.28")
[...]
-- Found LibXml2: /opt/br/abo/cmake-host-find-root-path/host/arm-buildroot-linux-gnueabihf/sysroot/usr/lib/libxml2.so (found version "2.9.4")
[...]
0
After this patch is applied:
make O=/opt/br/abo/cmake-host-find-root-path libxml2 host-mariadb{-dirclean,-configure} && echo $?
[...]
>>> host-mariadb 10.1.25 Configuring
(mkdir -p /opt/br/abo/cmake-host-find-root-path/build/host-mariadb-10.1.25/ && cd /opt/br/abo/cmake-host-find-root-path/build/host-mariadb-10.1.25/ && rm -f CMakeCache.txt && PATH="/opt/br/abo/cmake-host-find-root-path/host/bin:/opt/br/abo/cmake-host-find-root-path/host/sbin:/home/sam/.local/bin:/sbin:/usr/sbin:/bin:/usr/bin" PKG_CONFIG="/opt/br/abo/cmake-host-find-root-path/host/bin/pkg-config" PKG_CONFIG_SYSROOT_DIR="/" PKG_CONFIG_LIBDIR="/opt/br/abo/cmake-host-find-root-path/host/lib/pkgconfig:/opt/br/abo/cmake-host-find-root-path/host/share/pkgconfig" PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 /usr/bin/cmake /opt/br/abo/cmake-host-find-root-path/build/host-mariadb-10.1.25/ -DCMAKE_INSTALL_SO_NO_EXE=0 -DCMAKE_FIND_ROOT_PATH="/opt/br/abo/cmake-host-find-root-path/host" -DCMAKE_FIND_ROOT_PATH_MODE_PROGRAM="BOTH" -DCMAKE_FIND_ROOT_PATH_MODE_LIBRARY="BOTH" -DCMAKE_FIND_ROOT_PATH_MODE_INCLUDE="BOTH" -DCMAKE_INSTALL_PREFIX="/opt/br/abo/cmake-host-find-roo
t-path/host" -DCMAKE_C_FLAGS="-O2 -I/opt/br/abo/cmake-host-find-root-path/host/include" -DCMAKE_CXX_FLAGS="-O2 -I/opt/br/abo/cmake-host-find-root-path/host/include" -DCMAKE_EXE_LINKER_FLAGS="-L/opt/br/abo/cmake-host-find-root-path/host/lib -Wl,-rpath,/opt/br/abo/cmake-host-find-root-path/host/lib" -DCMAKE_ASM_COMPILER="/usr/bin/as" -DCMAKE_C_COMPILER="/usr/bin/gcc" -DCMAKE_CXX_COMPILER="/usr/bin/g++" -DCMAKE_C_COMPILER_ARG1="" -DCMAKE_CXX_COMPILER_ARG1="" -DCMAKE_COLOR_MAKEFILE=OFF -DBUILD_DOC=OFF -DBUILD_DOCS=OFF -DBUILD_EXAMPLE=OFF -DBUILD_EXAMPLES=OFF -DBUILD_TEST=OFF -DBUILD_TESTS=OFF -DBUILD_TESTING=OFF -DWITH_SSL=bundled )
-- Running cmake version 3.8.2
[...]
-- Found PkgConfig: /opt/br/abo/cmake-host-find-root-path/host/bin/pkg-config (found version "0.28")
[...]
-- Found LibXml2: /usr/lib/libxml2.so (found version "2.9.4")
[...]
0
[1] http://lists.busybox.net/pipermail/buildroot/2017-August/199776.html
Reported-by: "Sigalas, Antonios (Nokia - GR/Athens)" <antonios.sigalas@nokia.com>
Cc: "Sigalas, Antonios (Nokia - GR/Athens)" <antonios.sigalas@nokia.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
(cherry picked from commit c9f9b16a2f)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on Freenode IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches