Refactor configure.ac's: Put XCODE_VERSION() in aclocal.m4
[ghc.git] / distrib / configure.ac.in
1 dnl
2 dnl Binary distribution configure script
3 dnl
4 #!/bin/sh
5 #
6
7 AC_INIT([The Glorious Glasgow Haskell Compilation System], [@ProjectVersion@], [glasgow-haskell-bugs@haskell.org], [ghc])
8
9 FP_BINDIST_GHC_PWD
10 FP_FIND_ROOT
11
12 BootingFromHc=NO
13 AC_SUBST(BootingFromHc)
14
15 dnl--------------------------------------------------------------------
16 dnl * Deal with arguments telling us gmp is somewhere odd
17 dnl--------------------------------------------------------------------
18
19 FP_GMP
20
21 bootstrap_target=`ghc/stage2/build/tmp/ghc-stage2 +RTS --info | grep '^ ,("Target platform"' | sed -e 's/.*, "//' -e 's/")//' | tr -d '\r'`
22 FPTOOLS_SET_PLATFORM_VARS
23
24 #
25 dnl ** Check Perl installation **
26 #
27 AC_PATH_PROG(PerlCmd,perl)
28 if test -z "$PerlCmd"; then
29    echo "You must install perl before you can continue"
30    echo "Perhaps it is already installed, but not in your PATH?"
31    exit 1
32 fi
33 FPTOOLS_SHEBANG_PERL
34
35 #
36 dnl ** figure out how to do a BSD-ish install **
37 #
38 AC_PROG_INSTALL
39
40 #
41 dnl ** how to do symlinks **
42 #
43 AC_PROG_LN_S()
44
45 #
46 dnl ** Find the path to sed **
47 #
48 AC_PATH_PROG(SedCmd,gsed sed,sed)
49
50 XCODE_VERSION()
51
52 dnl ** Which gcc to use?
53 dnl --------------------------------------------------------------
54 if test "$TargetOS_CPP" = "darwin" &&
55    test "$XCodeVersion1" -ge 4
56 then
57   # From Xcode 4, use 'gcc-4.2' to force the use of the gcc legacy backend (instead of the LLVM
58   # backend)
59   FP_ARG_WITH_PATH_GNU_PROG([CC], [gcc-4.2])
60 else
61   FP_ARG_WITH_PATH_GNU_PROG([CC], [gcc])
62 fi
63 export CC
64 WhatGccIsCalled="$CC"
65 AC_SUBST(WhatGccIsCalled)
66
67 FP_GCC_VERSION
68 AC_PROG_CPP
69
70 #
71 dnl ** Check gcc version and flags we need to pass it **
72 #
73 FP_GCC_EXTRA_FLAGS
74
75 FPTOOLS_SET_C_LD_FLAGS([target],[CFLAGS],[LDFLAGS],[IGNORE_LINKER_LD_FLAGS],[CPPFLAGS])
76 FPTOOLS_SET_C_LD_FLAGS([build],[CONF_CC_OPTS_STAGE0],[CONF_GCC_LINKER_OPTS_STAGE0],[CONF_LD_LINKER_OPTS_STAGE0],[CONF_CPP_OPTS_STAGE0])
77 FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE1],[CONF_GCC_LINKER_OPTS_STAGE1],[CONF_LD_LINKER_OPTS_STAGE1],[CONF_CPP_OPTS_STAGE1])
78 # Stage 3 won't be supported by cross-compilation
79 FPTOOLS_SET_C_LD_FLAGS([target],[CONF_CC_OPTS_STAGE2],[CONF_GCC_LINKER_OPTS_STAGE2],[CONF_LD_LINKER_OPTS_STAGE2],[CONF_CPP_OPTS_STAGE2])
80
81 AC_SUBST(CONF_CC_OPTS_STAGE0)
82 AC_SUBST(CONF_CC_OPTS_STAGE1)
83 AC_SUBST(CONF_CC_OPTS_STAGE2)
84 AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE0)
85 AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE1)
86 AC_SUBST(CONF_GCC_LINKER_OPTS_STAGE2)
87 AC_SUBST(CONF_LD_LINKER_OPTS_STAGE0)
88 AC_SUBST(CONF_LD_LINKER_OPTS_STAGE1)
89 AC_SUBST(CONF_LD_LINKER_OPTS_STAGE2)
90 AC_SUBST(CONF_CPP_OPTS_STAGE0)
91 AC_SUBST(CONF_CPP_OPTS_STAGE1)
92 AC_SUBST(CONF_CPP_OPTS_STAGE2)
93
94 FP_SETTINGS
95
96 #
97 dnl ** how to invoke `ar' and `ranlib'
98 #
99 FP_PROG_AR_NEEDS_RANLIB
100
101 #
102 AC_CONFIG_FILES(settings mk/config.mk mk/install.mk)
103 AC_OUTPUT
104
105 # We get caught by
106 #     http://savannah.gnu.org/bugs/index.php?1516
107 #     $(eval ...) inside conditionals causes errors
108 # with make 3.80, so warn the user if it looks like they're about to
109 # try to use it.
110 # We would use "grep -q" here, but Solaris's grep doesn't support it.
111 checkMake380() {
112     if $1 --version 2>&1 | head -1 | grep 'GNU Make 3\.80' > /dev/null
113     then
114         echo
115         echo "WARNING: It looks like \"$1\" is GNU make 3.80."
116         echo "This version cannot be used to build GHC."
117         echo "Please use GNU make >= 3.81."
118     fi
119 }
120
121 checkMake380 make
122 checkMake380 gmake
123
124 echo "****************************************************"
125 echo "Configuration done, ready to 'make install'"
126 echo "(see README and INSTALL files for more info.)"
127 echo "****************************************************"