# Public macros for the TeX Live (TL) tree. # Copyright (C) 2009 Peter Breitenlohner # # This file is free software; the copyright holders # give unlimited permission to copy and/or distribute it, # with or without modifications, as long as this notice is preserved. # serial 0 # KPSE_COMPILER_WARNINGS # ---------------------- # Set up compiler warnings for C and C++. # This macro determines and substitutes WARNING_CFLAGS for the C compiler # and, if applicable, WARNING_CXXFLAGS for the C++ compiler. To activate # them a Makefile.am must use them, e.g., in AM_CFLAGS or AM_CXXFLAGS. AC_DEFUN([KPSE_COMPILER_WARNINGS], [AC_REQUIRE([_KPSE_COMPILER_WARNINGS_OPTION])[]dnl KPSE_WARNING_CFLAGS dnl arrange that AC_PROG_CXX uses _KPSE_WARNING_CXXFLAGS. AC_PROVIDE_IFELSE([AC_PROG_CXX], [_KPSE_WARNING_CXXFLAGS], [m4_define([AC_PROG_CXX], m4_defn([AC_PROG_CXX])[_KPSE_WARNING_CXXFLAGS])]) ]) # KPSE_COMPILER_WARNINGS KPSE_WARNING_CFLAGS # ----------------- # Determine and substitute WARNING_CFLAGS for C compiler. AC_DEFUN([KPSE_WARNING_CFLAGS], [AC_REQUIRE([_KPSE_COMPILER_WARNINGS_OPTION])[]dnl AC_REQUIRE([AC_PROG_CC])[]dnl AC_CACHE_CHECK([what warning flags to pass to the C compiler], [kpse_cv_warning_cflags], [dnl if test "x$enable_compiler_warnings" = xno; then kpse_cv_warning_cflags= elif test "x$GCC" = xyes; then kpse_cv_warning_cflags="-Wall -Wunused" AS_CASE([`$CC -dumpversion`], [3.4.* | 4.*], [kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wdeclaration-after-statement"]) AS_CASE([`$CC -dumpversion`], [3.@<:@234@:>@.* | 4.*], [kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wno-unknown-pragmas"]) if test "x$enable_compiler_warnings" != xmin; then kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wmissing-prototypes -Wmissing-declarations" if test "x$enable_compiler_warnings" != xyes; then kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wimplicit -Wparentheses -Wreturn-type" kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wswitch -Wtrigraphs -Wshadow -Wpointer-arith" kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wcast-qual -Wcast-align -Wwrite-strings" AS_CASE([`$CC -dumpversion`], [3.4.* | 4.*], [kpse_cv_warning_cflags="$kpse_cv_warning_cflags -Wold-style-definition"]) fi fi else : # FIXME: warning flags for non-gcc compilers fi]) WARNING_CFLAGS=$kpse_cv_warning_cflags AC_SUBST([WARNING_CFLAGS]) ]) # KPSE_WARNING_CFLAGS # KPSE_WARNING_CXXFLAGS # --------------------- # Determine and substitute WARNING_CXXFLAGS for C++ compiler. AC_DEFUN([KPSE_WARNING_CXXFLAGS], [AC_REQUIRE([_KPSE_COMPILER_WARNINGS_OPTION])[]dnl AC_REQUIRE([AC_PROG_CXX])[]dnl _KPSE_WARNING_CXXFLAGS ]) # KPSE_WARNING_CXXFLAGS # _KPSE_COMPILER_WARNINGS_OPTION # ------------------------------ # Internal subroutine. # Provide configure option `--enable-compiler-warnings=[no|min|yes|max]' # to enable various degrees of compiler warnings. AC_DEFUN([_KPSE_COMPILER_WARNINGS_OPTION], [AC_ARG_ENABLE([compiler-warnings], AS_HELP_STRING([--enable-compiler-warnings=@<:@no|min|yes|max@:>@], [Turn on compiler warnings @<:@default: yes if maintainer-mode, min otherwise@:>@]))[]dnl AS_CASE([$enable_compiler_warnings], [no | min | yes | max], [], [AS_IF([test "x$enable_maintainer_mode" = xyes], [enable_compiler_warnings=yes], [enable_compiler_warnings=min])]) ]) # _KPSE_COMPILER_WARNINGS_OPTION # _KPSE_WARNING_CXXFLAGS # ---------------------- # Internal subroutine. # Determine and substitute WARNING_CXXFLAGS for C++ compiler. m4_define([_KPSE_WARNING_CXXFLAGS], [AC_CACHE_CHECK([what warning flags to pass to the C++ compiler], [kpse_cv_warning_cxxflags], [dnl if test "x$enable_compiler_warnings" = xno; then kpse_cv_warning_cxxflags= elif test "x$GXX" = xyes; then kpse_cv_warning_cxxflags="-Wall -Wunused" AS_CASE([`$CXX -dumpversion`], [3.@<:@234@:>@.* | 4.*], [kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wno-unknown-pragmas"]) if test "x$enable_compiler_warnings" != xmin; then if test "x$enable_compiler_warnings" != xyes; then kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wimplicit -Wparentheses -Wreturn-type" kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wswitch -Wtrigraphs -Wshadow -Wpointer-arith" kpse_cv_warning_cxxflags="$kpse_cv_warning_cxxflags -Wcast-qual -Wcast-align -Wwrite-strings" fi fi else : # FIXME: warning flags for non-g++ compilers fi]) WARNING_CXXFLAGS=$kpse_cv_warning_cxxflags AC_SUBST([WARNING_CXXFLAGS]) m4_define([_KPSE_WARNING_CXXFLAGS], [])[]dnl ]) # _KPSE_WARNING_CXXFLAGS