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Fixes: http://autobuild.buildroot.net/results/a5b/a5bd8969c398fc3101ffaec4aa715a827aec5770/ http://autobuild.buildroot.net/results/441/44112e8ad03f47125bbf4b231d800ebd5beef24b/ After commit 122089ad (package/netsurf: use TMP_PREFIX inside the build directory), the build fails with: COMPILE: src/stylesheet.c In file included from src/stylesheet.c:12:0: src/stylesheet.h:14:39: fatal error: libwapcaplet/libwapcaplet.h: No such file or directory #include <libwapcaplet/libwapcaplet.h> The reason is that netsurf installs its internal libraries to TMP_PREFIX during the build, and uses pkg-config to add the correct include/linker flags when building/linking the rest. Unfortunately this fails badly, as we prefix STAGING_DIR to the paths returned by pkg-config, causing gcc to fail to find the header / library files. This worked (by accident) when we pointed TMP_PREFIX to STAGING_DIR/usr, as STAGING_DIR/usr/include and STAGING_DIR/usr/lib are in the standard include/library search paths. Fix it by adding TMP_PREFIX/include and TMP_PREFIX/lib to the include/library search paths. We cannot easily add them to CFLAGS/LDFLAGS as the makefiles do not use override when appending to them, so instead pass both in CC (which is also used for linking). Signed-off-by: Peter Korsgaard <peter@korsgaard.com>