I am can run a shell command to grab the default include path from the compiler (and append the -I):
arm-none-eabi-gcc -xc -E -Wp,-v /dev/null 2>&1 | sed -En '/#include <...> search starts here:/,/End of search list./{//!p;};' | sed 's/^ /-I/'I am trying to add that inside a Makefile:
PROJECT_INC = $(shell arm-none-eabi-gcc -xc -E -Wp,-v /dev/null 2>&1 | sed -En "/#include <...> search starts here:/,/End of search list./{//!p;}" | sed "s/^ /-I/")Then I get an error:
Makefile:104: *** unterminated call to function `shell': missing `)'. Stop.I tried to use backticks instead, that does not help. Tried using single-quotes or double-quotes for the sed commands. Most of the similar problems I can find on SO are related to expansion when there is a $ in the command, but it should not be a problem here.
If I cut down the command:
PROJECT_INC = $(shell arm-none-eabi-gcc -xc -E -Wp,-v /dev/null 2>&1 )Then it seems to be cutting down the output.The shell would return
ignoring duplicate directory "/Users/mjeanson/miniconda3/envs/project/bin/../lib/gcc/../../lib/gcc/arm-none-eabi/8.3.1/include"ignoring nonexistent directory "/Users/mjeanson/miniconda3/envs/project/bin/../arm-none-eabi/usr/local/include"ignoring duplicate directory "/Users/mjeanson/miniconda3/envs/project/bin/../lib/gcc/../../lib/gcc/arm-none-eabi/8.3.1/include-fixed"ignoring duplicate directory "/Users/mjeanson/miniconda3/envs/project/bin/../lib/gcc/../../lib/gcc/arm-none-eabi/8.3.1/../../../../arm-none-eabi/include"ignoring nonexistent directory "/Users/mjeanson/miniconda3/envs/project/bin/../arm-none-eabi/usr/include"#include "..." search starts here:#include <...> search starts here: /Users/mjeanson/miniconda3/envs/project/bin/../lib/gcc/arm-none-eabi/8.3.1/include /Users/mjeanson/miniconda3/envs/project/bin/../lib/gcc/arm-none-eabi/8.3.1/include-fixed /Users/mjeanson/miniconda3/envs/project/bin/../lib/gcc/arm-none-eabi/8.3.1/../../../../arm-none-eabi/includeEnd of search list.# 1 "/dev/null"# 1 "<built-in>"# 1 "<command-line>"# 1 "/dev/null"Running this inside the Makefile, it would discard from the first line starting with #include, but otherwise it works. Not sure if that's going to be still be a problem after the piping to the sed command works fine(?)
If that's relevant (and not already obvious in the code snippets above), my environment is using a cross compiler (arm-none-eabi-gcc) and in a conda environment and all running on a Mac.
I don't think it should matter, but the reason why I need to do this is so that I can use some static analysis tool. When compiling the code itself, I do not need to add the default include path.
Bonus: I tried combining the sed commands in one but could not figure out how to do that...