features.in

   1 dnl Copyright © 1997-2016, The AROS Development Team. All rights reserved.
   2 dnl $Id$
   3 dnl
   4 dnl Desc: Autoconf source for target compiler feature detection
   5 dnl Lang: english
   6
   7 # Note: After file changes, generate features anew and commit _both_ files.
   8 -------------------------
   9
  10 AC_INIT(mmakefile)
  11 AC_PREREQ(2.61)
  12 AC_CONFIG_AUX_DIR(scripts/autoconf)
  13
  14 # Don't know where else to put this...
  15 AC_MSG_CHECKING([building AROS in])
  16 AROS_BUILDDIR=`${PWDCMD-pwd}`
  17 AROS_BUILDDIR_UNIX=${PWD}
  18 AC_MSG_RESULT($AROS_BUILDDIR)
  19
  20 AC_MSG_CHECKING([AROS source in])
  21 srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
  22 SRCDIR=${srcpwd}
  23 AC_MSG_RESULT($SRCDIR)
  24
  25 # The first step is to find the binaries.
  26 # Check for our compiler.
  27 # Due to a bug in autoconf check for c++ compiler first.
  28 # For mor info see, http://osdir.com/ml/bug-autoconf-gnu/2010-05/msg00001.html.
  29 AC_PROG_CXX
  30 AC_PROG_CC
  31 AC_PROG_CC_STDC
  32 AC_PROG_CPP
  33
  34 AC_MSG_CHECKING([target config location])
  35 AC_ARG_WITH(config-dir,AC_HELP_STRING([--with-config-dir=VERSION],[Location of generated target config files]),targetcfg_dir="$withval",targetcfg_dir="")
  36 if test "$targetcfg_dir" = ""; then
  37     AC_MSG_ERROR([missing config directory!])
  38 else
  39     aros_targetcfg_dir="$targetcfg_dir"
  40 fi
  41 AC_MSG_RESULT($aros_targetcfg_dir)
  42
  43 #-----------------------------------------------------------------------------
  44
  45 # Check if the target compiler supports some options used for delinting:
  46 #  -Wunused-but-set-variable
  47 #  -Warray-bounds
  48 #  -Wenum-compare
  49 #  -Wstrict-overflow
  50 #  -Wformat-security
  51
  52 AC_MSG_CHECKING([whether ${CC} accepts -Wunused-but-set-variable])
  53 CFLAGS=-Wunused-but-set-variable
  54 AC_TRY_COMPILE(,, aros_unused_but_set_variable="yes", aros_unused_but_set_variable="no")
  55 AC_MSG_RESULT($aros_unused_but_set_variable)
  56 if test "x-$aros_unused_but_set_variable" = "x-yes" ; then
  57     aros_cflags_unused_but_set_variable=-Wno-unused-but-set-variable
  58 fi
  59
  60 AC_MSG_CHECKING([whether ${CC} accepts -Warray-bounds])
  61 CFLAGS=-Warray-bounds
  62 AC_TRY_COMPILE(,, aros_array_bounds="yes", aros_array_bounds="no")
  63 AC_MSG_RESULT($aros_array_bounds)
  64 if test "x-$aros_array_bounds" = "x-yes" ; then
  65     aros_cflags_array_bounds=-Wno-array-bounds
  66 fi
  67
  68 AC_MSG_CHECKING([whether ${CC} accepts -Wenum-compare])
  69 CFLAGS=-Wenum-compare
  70 AC_TRY_COMPILE(,, aros_enum_compare="yes", aros_enum_compare="no")
  71 AC_MSG_RESULT($aros_enum_compare)
  72 if test "x-$aros_enum_compare" = "x-yes" ; then
  73     aros_cflags_enum_compare=-Wno-enum-compare
  74 fi
  75
  76 AC_MSG_CHECKING([whether ${CC} accepts -Wstrict-overflow])
  77 CFLAGS=-Wstrict-overflow
  78 AC_TRY_COMPILE(,, aros_strict_overflow="yes", aros_strict_overflow="no")
  79 AC_MSG_RESULT($aros_strict_overflow)
  80 if test "x-$aros_strict_overflow" = "x-yes" ; then
  81     aros_cflags_strict_overflow=-Wno-strict-overflow
  82 fi
  83
  84 AC_MSG_CHECKING([whether ${CC} accepts -Wformat-security])
  85 CFLAGS=-Wformat-security
  86 AC_TRY_COMPILE(,, aros_format_security="yes", aros_format_security="no")
  87 AC_MSG_RESULT($aros_format_security)
  88 if test "x-$aros_format_security" = "x-yes" ; then
  89     aros_cflags_format_security=-Wno-format-security
  90 fi
  91
  92 AC_MSG_CHECKING([whether ${CC} accepts -Wmisleading-indentation])
  93 CFLAGS=-Wmisleading-indentation
  94 AC_TRY_COMPILE(,, aros_misleading_indentation="yes", aros_misleading_indentation="no")
  95 AC_MSG_RESULT($aros_misleading_indentation)
  96 if test "x-$aros_misleading_indentation" = "x-yes" ; then
  97     aros_cflags_misleading_indentation=-Wno-misleading-indentation
  98 fi
  99
 100 AC_MSG_CHECKING([whether ${CC} accepts -Wnonnull-compare])
 101 CFLAGS=-Wnonnull-compare
 102 AC_TRY_COMPILE(,, aros_nonnull_compare="yes", aros_nonnull_compare="no")
 103 AC_MSG_RESULT($aros_nonnull_compare)
 104 if test "x-$aros_nonnull_compare" = "x-yes" ; then
 105     aros_cflags_nonnull_compare=-Wno-nonnull-compare
 106 fi
 107
 108 AC_SUBST(aros_cflags_unused_but_set_variable)
 109 AC_SUBST(aros_cflags_array_bounds)
 110 AC_SUBST(aros_cflags_enum_compare)
 111 AC_SUBST(aros_cflags_strict_overflow)
 112 AC_SUBST(aros_cflags_format_security)
 113 AC_SUBST(aros_cflags_misleading_indentation)
 114 AC_SUBST(aros_cflags_nonnull_compare)
 115
 116 AC_CONFIG_FILES(
 117     ${aros_targetcfg_dir}/compiler.cfg:config/compiler.cfg.in
 118 )
 119
 120 AC_OUTPUT