abstract_compiler: add -Qunused-argument if clang

[nit.git] / src / abstract_compiler.nit

diff --git a/src/abstract_compiler.nit b/src/abstract_compiler.nit
index 031be97..0f4070c 100644 (file)
--- a/src/abstract_compiler.nit
+++ b/src/abstract_compiler.nit
@@ -324,6 +324,15 @@ class MakefileToolchain
                if ost == "libunwind" or ost == "nitstack" then linker_options.add("-lunwind")
 
                makefile.write("CC = ccache cc\nCFLAGS = -g -O2 -Wno-unused-value -Wno-switch\nCINCL = {cc_includes}\nLDFLAGS ?= \nLDLIBS  ?= -lm -lgc {linker_options.join(" ")}\n\n")
+
+               # Dynamic adaptations
+               # While `platform` enable complex toolchains, they are statically applied
+               # For a dynamic adaptsation of the compilation, the generated Makefile should check and adapt things itself
+
+               # Check and adapt for the compiler used
+               # clang need an additionnal `-Qunused-arguments`
+               makefile.write("clang_check := $(shell sh -c '$(CC) -v 2>&1 | grep -q clang; echo $$?')\nifeq ($(clang_check), 0)\n\tCFLAGS += -Qunused-arguments\nendif\n")
+
                makefile.write("all: {outpath}\n\n")
 
                var ofiles = new Array[String]