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[build] improve (warning) compile flags

master
Stefan Bühler 2 years ago
parent
commit
e256c300ee
  1. 23
      CMakeLists.txt
  2. 2
      cmake/AddTargetProperties.cmake
  3. 8
      configure.ac

23
CMakeLists.txt

@ -18,6 +18,26 @@ IF("${CMAKE_BUILD_TYPE}" STREQUAL "")
ENDIF("${CMAKE_BUILD_TYPE}" STREQUAL "")
OPTION(GCC_LIBEVENT_STATIC "link libevent static")
OPTION(BUILD_EXTRA_WARNINGS "extra warnings")
# default to ON
SET(CMAKE_POSITION_INDEPENDENT_CODE ON CACHE BOOL "Default value for ``POSITION_INDEPENDENT_CODE`` of targets.")
IF(BUILD_EXTRA_WARNINGS)
SET(WARN_CFLAGS "-g -O2 -g2 -Wall -Wmissing-declarations -Wdeclaration-after-statement -Wcast-align -Wsign-compare -Wnested-externs -Wpointer-arith -Wmissing-prototypes -Wshadow -Wno-pointer-sign -Wformat-security")
SET(WARN_LDFLAGS "-g -O2 -g2 -Wall -Wl,--as-needed -Wl,--no-undefined")
ELSE(BUILD_EXTRA_WARNINGS)
SET(WARN_CFLAGS "")
SET(WARN_LDFLAGS "")
ENDIF(BUILD_EXTRA_WARNINGS)
IF(CMAKE_COMPILER_IS_GNUCC)
SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -Wall -g -Wshadow -W -pedantic")
SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O2")
SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0")
SET(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_WITHDEBINFO} -O2")
ADD_DEFINITIONS(-D_GNU_SOURCE)
ENDIF(CMAKE_COMPILER_IS_GNUCC)
# libevent
pkg_check_modules (LIBEVENT REQUIRED libevent>=2.0)
@ -38,7 +58,8 @@ INCLUDE_DIRECTORIES(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR})
add_executable(scgi-cgi ${MAIN_SOURCE})
ADD_TARGET_PROPERTIES(scgi-cgi COMPILE_FLAGS "-std=gnu99 -Wall -g -Wshadow -W -pedantic -fPIC")
ADD_TARGET_PROPERTIES(scgi-cgi COMPILE_FLAGS "${WARN_FLAGS}")
TARGET_LINK_LIBRARIES(scgi-cgi ${WARN_LDFLAGS})
# libev
TARGET_LINK_LIBRARIES(scgi-cgi ${MYLIBEVENT_LDFLAGS})

2
cmake/AddTargetProperties.cmake

@ -4,7 +4,7 @@ MACRO(ADD_TARGET_PROPERTIES _target _name)
SET(_properties "${_properties} ${_prop}")
ENDFOREACH(_prop)
GET_TARGET_PROPERTY(_old_properties ${_target} ${_name})
MESSAGE(STATUS "adding property to ${_target} ${_name}:" ${_properties})
#MESSAGE(STATUS "adding property to ${_target} ${_name}:" ${_properties})
IF(NOT _old_properties)
# in case it's NOTFOUND
SET(_old_properties)

8
configure.ac

@ -33,16 +33,16 @@ if test "${GCC}" = "yes"; then
CFLAGS="${CFLAGS} -Wall -W -Wshadow -pedantic -std=gnu99"
fi
AC_ARG_ENABLE(extra-warnings,
AC_HELP_STRING([--enable-extra-warnings],[enable extra warnings (gcc specific)]),
AC_ARG_ENABLE([extra-warnings],
[AS_HELP_STRING([--enable-extra-warnings],[enable extra warnings (gcc specific)])],
[case "${enableval}" in
yes) extrawarnings=true ;;
no) extrawarnings=false ;;
*) AC_MSG_ERROR(bad value ${enableval} for --enable-extra-warnings) ;;
*) AC_MSG_ERROR([bad value ${enableval} for --enable-extra-warnings]) ;;
esac],[extrawarnings=false])
if test x$extrawarnings = xtrue; then
CFLAGS="${CFLAGS} -g -O2 -g2 -Wall -Wmissing-declarations -Wdeclaration-after-statement -Wno-pointer-sign -Wcast-align -Winline -Wsign-compare -Wnested-externs -Wpointer-arith -Wl,--as-needed -Wformat-security"
CFLAGS="${CFLAGS} -g -O2 -g2 -Wall -Wmissing-declarations -Wdeclaration-after-statement -Wcast-align -Wsign-compare -Wnested-externs -Wpointer-arith -Wmissing-prototypes -Wshadow -Wno-pointer-sign -Wformat-security -Wl,--as-needed -Wl,--no-undefined"
fi
AC_CONFIG_FILES([Makefile])

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