From 72accd078f20ed2a5caaa12b1bea463f40aadd73 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Sun, 7 Jul 2024 00:59:13 +0100 Subject: [PATCH] tools/flex: respect STAGING_DIR_HOST flex currently leaks the path of m4 as found on the build host. While it is possible to override this using the M4 environment variable (which we always did for autotools based builds) when using CMake or Ninja the M4 variable is not set. One easy fix is to make flex take STAGING_DIR_HOST into account and expect m4 there if that variable is set in the environment. Signed-off-by: Daniel Golle --- tools/flex/patches/300-m4-path.patch | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 tools/flex/patches/300-m4-path.patch diff --git a/tools/flex/patches/300-m4-path.patch b/tools/flex/patches/300-m4-path.patch new file mode 100644 index 0000000000..48e376f276 --- /dev/null +++ b/tools/flex/patches/300-m4-path.patch @@ -0,0 +1,23 @@ +--- a/src/main.c ++++ b/src/main.c +@@ -213,6 +213,8 @@ int main (int argc, char *argv[]) + + void check_options (void) + { ++ const char * staging_dir = NULL; ++ char * m4_staging = NULL; + int i; + const char * m4 = NULL; + +@@ -341,7 +343,10 @@ void check_options (void) + + /* Setup the filter chain. */ + output_chain = filter_create_int(NULL, filter_tee_header, headerfilename); +- if ( !(m4 = getenv("M4"))) { ++ if ( (staging_dir = getenv("STAGING_DIR_HOST"))) { ++ asprintf(&m4_staging, "%s/bin/m4", staging_dir); ++ m4 = m4_staging; ++ } else if ( !(m4 = getenv("M4"))) { + char *slash; + m4 = M4; + if ((slash = strrchr(M4, '/')) != NULL) {