Make the build-process support rtags

Rtags depends on cmake to export its build commands in order to index
the codebase.

Adding this flag makes cmake do that.

diff --git a/src/pal/tools/gen-buildsys-clang.sh b/src/pal/tools/gen-buildsys-clang.sh
index 5e281e4..89caf32 100755 (executable)
--- a/src/pal/tools/gen-buildsys-clang.sh
+++ b/src/pal/tools/gen-buildsys-clang.sh
@@ -144,6 +144,7 @@ cmake \
   "-DCMAKE_OBJDUMP=$llvm_objdump" \
   "-DCMAKE_BUILD_TYPE=$buildtype" \
   "-DCMAKE_ENABLE_CODE_COVERAGE=$code_coverage" \
+  "-DCMAKE_EXPORT_COMPILE_COMMANDS=1 " \
   "-DCLR_CMAKE_BUILD_TESTS=$build_tests" \
   $cmake_extra_defines \
   "$__UnprocessedCMakeArgs" \