minifi-cpp: Remove references to buildpaths in generated files

bison/flex emits line directives which can be safely removed from
generated files.

agent_version.h is generated by cmake which has build information like
compiler and cflags etc. which contains buildpaths too, therefore
replace real workdir with <WORKDIR>

Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-extended/minifi-cpp/minifi-cpp_0.7.0.bb

@@ -61,6 +61,8 @@ EXTRA_OECMAKE += " \
     -DGCC_AR=${STAGING_BINDIR_TOOLCHAIN}/${AR} \
     -DGCC_RANLIB=${STAGING_BINDIR_TOOLCHAIN}/${RANLIB} \
     -DDISABLE_PYTHON_SCRIPTING=ON \
+    -DFLEX_TARGET_ARG_COMPILE_FLAGS='--noline' \
+    -DBISON_TARGET_ARG_COMPILE_FLAGS='--no-lines --file-prefix-map=${S}=/usr/src/debug/${PN}/${EXTENDPE}${PV}-${PR}' \
     "
 EXTRA_OECMAKE:append:toolchain-clang = " -DCMAKE_RANLIB=${STAGING_BINDIR_TOOLCHAIN}/${TARGET_PREFIX}llvm-ranlib"
 LDFLAGS:append:toolchain-clang = " -fuse-ld=lld"
@@ -88,6 +90,10 @@ do_configure:prepend:libc-musl() {
     sed -i -e 's/-DHAVE_POSIX_STRERROR_R=0/-DHAVE_POSIX_STRERROR_R=1/' ${S}/CMakeLists.txt
 }
 
+do_configure:append() {
+    sed -i -e 's|${WORKDIR}|<WORKDIR>|g' ${S}/libminifi/include/agent/agent_version.h
+}
+
 CFLAGS:append:libc-glibc = " -D_GNU_SOURCE"
 CXXFLAGS:append:libc-glibc = " -D_GNU_SOURCE"