Do not append to C/XX/FLAGS but just set them if not defined already

6 years ago · 05e7d1d48f
parent 08ac806145
commit 05e7d1d48f
2 changed files with 2 additions and 2 deletions
--- a/c/Makefile
+++ b/c/Makefile
@ -29,7 +29,7 @@
 # - CFLAGS: Any extra user-specified compiler flags (can be blank).
 # Recommended compiler flags:
-CFLAGS += -std=c99 -O
+CFLAGS ?= -std=c99 -O
 # Extra flags for diagnostics:
 # CFLAGS += -g -Wall -Wextra -Wpedantic -Wconversion -Wsign-conversion -fsanitize=undefined,address
--- a/cpp/Makefile
+++ b/cpp/Makefile
@ -29,7 +29,7 @@
 # - CXXFLAGS: Any extra user-specified compiler flags (can be blank).
 # Recommended compiler flags:
-CXXFLAGS += -std=c++11 -O
+CXXFLAGS ?= -std=c++11 -O
 # Extra flags for diagnostics:
 # CXXFLAGS += -g -Wall -Wextra -Wpedantic -Wconversion -Wsign-conversion -fsanitize=undefined,address