bin/errs12

   1 #! /bin/bash
   2 # $Id$
   3
   4 renice +19 -p $$; ionice -c3 -p $$
   5
   6 # Do not use for ctags - it would override $PATH:
   7 # PS1=x; . ~/.bashrc
   8 function ctags {(unset ctags; PS1=x; . ~/.bashrc; ctags; );}
   9
  10 customss="--enable-static --disable-shared"
  11 customm="-m64"
  12 target=
  13 targets=
  14 configure="./configure"
  15 # >=4.7 has small macros section.
  16 if gcc --version|perl -ne 'exit(!(/(\d+)\.(\d+)/&&($1>4||($1==4&&$2>=7))));';then
  17   debug="-g3"
  18 else
  19   debug="-g2"
  20 fi
  21 mcheck="-lmcheck"
  22 fast=false
  23 readline=""
  24
  25 while true
  26 do
  27         if [ "$1" = "--origss" ];then
  28                 customss=
  29                 shift
  30                 continue
  31         fi
  32         if [ "$1" = "--fast" ];then
  33                 fast=true
  34                 shift
  35                 continue
  36         fi
  37         if [ "$1" = "--shared" ];then
  38                 customss="--disable-static --enable-shared"
  39                 shift
  40                 continue
  41         fi
  42
  43         if [ "$1" = "-m" ];then
  44                 customm=
  45                 shift
  46                 continue
  47         fi
  48         if [ "$1" = "-m32" ];then
  49                 customm=-m32
  50                 case `uname -m` in
  51                   i?86|x86_64|ia64) target=i386-unknown-linux-gnu ;;
  52                   ppc*)             target=powerpc64-unknown-linux-gnu ;;
  53                   s390*)            target=s390-unknown-linux-gnu ;;
  54                 esac
  55                 shift
  56                 continue
  57         fi
  58
  59         if [ "${1#*/configure}" != "$1" ];then
  60                 configure="$1"
  61                 shift
  62                 continue
  63         fi
  64
  65         if [ "$1" = "-s" ];then
  66                 # -O0 is important to override GCC -O2.
  67                 debug="-O0 -s"
  68                 shift
  69                 continue
  70         fi
  71
  72         if [ "$1" = "--nomcheck" ];then
  73                 mcheck=""
  74                 shift
  75                 continue
  76         fi
  77
  78         break
  79 done
  80
  81 rm -f errs1.ok
  82 (
  83         set -ex
  84         find -name config.cache|xargs rm -f
  85
  86         # sourceware.org?
  87         if test -f `dirname $configure`/bfd/elf64-x86-64.c \
  88              -o -f `dirname $configure`/gcc/reload.c;then
  89                 maintainer=""
  90         else
  91                 :
  92 #               maintainer="--enable-maintainer-mode"
  93         fi
  94         if test -f `dirname $configure`/bfd/elf64-x86-64.c;then
  95                 test -f g77 || (test -f /usr/bin/gfortran && ln -s /usr/bin/gfortran g77)
  96         fi
  97         if ! $fast;then
  98                 targets="$targets --enable-64-bit-bfd"
  99         fi
 100         if ! $fast && test -f `dirname $configure`/bfd/elf64-x86-64.c -a '(' -d CVS -o -d .git ')';then
 101                 targets="$targets --enable-targets=all"
 102         fi
 103
 104         if test -f `dirname $configure`/gcc/reload.c;then
 105                 werror="--disable-werror"
 106                 customm=""
 107                 # --disable-static would fail on finding built libstdc++ due to -static-libstdc++.
 108                 # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49829
 109                 #customss=""
 110                 customss="--disable-static --enable-shared"
 111         else
 112                 werror=""
 113         fi
 114
 115         if test -d readline/doc && ! test -e readline/readline.c;then
 116                 # Fedora gdb.spec prep.
 117                 readline="--with-system-readline"
 118         fi
 119
 120         test -z "$CC" && CC=gcc
 121         : >errs1.c
 122         # -Wp,-D_FORTIFY_SOURCE=2: /usr/include/features.h:329:3: error: #warning _FORTIFY_SOURCE requested but disabled [-Werror=cpp]
 123         for flags in                                                                                                    \
 124                 "$debug -pipe -Wall -fexceptions -fstack-protector --param=ssp-buffer-size=4"   \
 125                 "$debug -pipe -Wall -fexceptions"                                               \
 126                 ""                                                                                                      \
 127                 ;do
 128                 if [ -z "$flags" ];then
 129                         rm -f errs1.c
 130                         echo >&2 "flags error"
 131                         exit 1
 132                 fi
 133                 # Use -Werror:
 134                 # cc1: warnings being treated as errors
 135                 # archive.c:1: error: -fstack-protector not supported for this target
 136                 "$CC" $flags -Werror -c errs1.c -o /dev/null && break
 137         done
 138         if test -n "$customm" && "$CC" $customm -c errs1.c -o /dev/null;then
 139                 flags="$customm $flags"
 140         fi
 141         rm -f errs1.c
 142         export CFLAGS="$flags"
 143         export CXXFLAGS="$flags"
 144         export GCJFLAGS="$flags"
 145         export CFLAGS_FOR_TARGET="$flags"
 146         export CXXFLAGS_FOR_TARGET="$flags"
 147         export LDFLAGS="$mcheck"
 148
 149         time nice "$configure" $target $targets $customss $readline --enable-debug --disable-sim --enable-gold --enable-plugins $maintainer $werror --with-separate-debug-dir=/usr/lib/debug "$@"
 150
 151         (ctags; test -d gdb && (cd gdb; ctags; cd testsuite; ctags; cd ../gdbserver; ctags)) &
 152
 153         errs2
 154
 155         touch errs1.ok
 156         ) 2>&1|tee errs1
 157 test -f errs1.ok
 158 rc=$?
 159 rm -f errs1.ok
 160 exit $rc