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Make function calls without prior declaration an error

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which is the default behavior on C99 and up.
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Ahmad Fatoum 2018-01-25 22:34:29 +01:00
parent c2ec88f930
commit 8be93762d9
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GPG Key ID: C3EAC3DE9321D59B
2 changed files with 12 additions and 5 deletions
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12
CMakeLists.txt Normal file → Executable file
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@ -12,10 +12,16 @@ else()
set (CMAKE_C_STANDARD 99) set (CMAKE_C_STANDARD 99)
endif() endif()
include(CheckCCompilerFlag) include(CheckCCompilerFlag)
CHECK_C_COMPILER_FLAG("-Werror=pointer-arith" COMPILER_HAS_POINTER_ARITH_TOGGLE) foreach(option -Werror=pointer-arith;-Werror=implicit-function-declaration)
if(COMPILER_HAS_POINTER_ARITH_TOGGLE) CHECK_C_COMPILER_FLAG("${option}" COMPILER_HAS_THOSE_TOGGLES)
set(CMAKE_C_FLAGS "-Werror=pointer-arith ${CMAKE_C_FLAGS}") set(outcome "Failed")
if(COMPILER_HAS_THOSE_TOGGLES)
set(CMAKE_C_FLAGS "${option} ${CMAKE_C_FLAGS}")
set(outcome "works")
endif() endif()
message(STATUS "Testing if ${option} can be used -- ${outcome}")
endforeach()
add_subdirectory(src release) add_subdirectory(src release)

3
src/Makefile
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@ -262,7 +262,8 @@ endif
# -Wno-missing-braces ignore invalid warning (GCC bug 53119) # -Wno-missing-braces ignore invalid warning (GCC bug 53119)
# -D_DEFAULT_SOURCE use with -std=c99 on Linux and PLATFORM_WEB, required for timespec # -D_DEFAULT_SOURCE use with -std=c99 on Linux and PLATFORM_WEB, required for timespec
# -Werror=pointer-arith catch unportable code that does direct arithmetic on void pointers # -Werror=pointer-arith catch unportable code that does direct arithmetic on void pointers
CFLAGS += -O1 -Wall -std=c99 -D_DEFAULT_SOURCE -fgnu89-inline -Wno-missing-braces -Werror=pointer-arith # -Werror=implicit-function-declaration catch function calls without prior declaration
CFLAGS += -O1 -Wall -std=c99 -D_DEFAULT_SOURCE -fgnu89-inline -Wno-missing-braces -Werror=pointer-arith -Werror=implicit-function-declaration
ifeq ($(RAYLIB_BUILD_MODE), DEBUG) ifeq ($(RAYLIB_BUILD_MODE), DEBUG)
CFLAGS += -g CFLAGS += -g