configure

这是一个自动生成MAKEFILE的工具。一个很有用的库。在LINUX工程项目里是很好的帮手。希望对大家有点帮助。

  :
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  CPP="${CC-cc} -E -traditional-cpp"
  cat > conftest.$ac_ext <<EOF
#line 1678 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:1684: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  :
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  CPP="${CC-cc} -nologo -E"
  cat > conftest.$ac_ext <<EOF
#line 1695 "configure"
#include "confdefs.h"
#include <assert.h>
Syntax Error
EOF
ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
{ (eval echo configure:1701: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
if test -z "$ac_err"; then
  :
else
  echo "$ac_err" >&5
  echo "configure: failed program was:" >&5
  cat conftest.$ac_ext >&5
  rm -rf conftest*
  CPP=/lib/cpp
fi
rm -f conftest*
fi
rm -f conftest*
fi
rm -f conftest*
  ac_cv_prog_CPP="$CPP"
fi
  CPP="$ac_cv_prog_CPP"
else
  ac_cv_prog_CPP="$CPP"
fi
echo "$ac_t""$CPP" 1>&6

# Check whether --enable-shared or --disable-shared was given.
if test "${enable_shared+set}" = set; then
  enableval="$enable_shared"
  p=${PACKAGE-default}
case $enableval in
yes) enable_shared=yes ;;
no) enable_shared=no ;;
*)
  enable_shared=no
  # Look at the argument we got.  We use all the common list separators.
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
  for pkg in $enableval; do
    if test "X$pkg" = "X$p"; then
      enable_shared=yes
    fi
  done
  IFS="$ac_save_ifs"
  ;;
esac
else
  enable_shared=yes
fi

# Check whether --enable-static or --disable-static was given.
if test "${enable_static+set}" = set; then
  enableval="$enable_static"
  p=${PACKAGE-default}
case $enableval in
yes) enable_static=yes ;;
no) enable_static=no ;;
*)
  enable_static=no
  # Look at the argument we got.  We use all the common list separators.
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
  for pkg in $enableval; do
    if test "X$pkg" = "X$p"; then
      enable_static=yes
    fi
  done
  IFS="$ac_save_ifs"
  ;;
esac
else
  enable_static=yes
fi

# Check whether --enable-fast-install or --disable-fast-install was given.
if test "${enable_fast_install+set}" = set; then
  enableval="$enable_fast_install"
  p=${PACKAGE-default}
case $enableval in
yes) enable_fast_install=yes ;;
no) enable_fast_install=no ;;
*)
  enable_fast_install=no
  # Look at the argument we got.  We use all the common list separators.
  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
  for pkg in $enableval; do
    if test "X$pkg" = "X$p"; then
      enable_fast_install=yes
    fi
  done
  IFS="$ac_save_ifs"
  ;;
esac
else
  enable_fast_install=yes
fi

echo $ac_n "checking for $LD option to reload object files""... $ac_c" 1>&6
echo "configure:1795: checking for $LD option to reload object files" >&5
if eval "test \"`echo '$''{'lt_cv_ld_reload_flag'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  lt_cv_ld_reload_flag='-r'
fi

echo "$ac_t""$lt_cv_ld_reload_flag" 1>&6
reload_flag=$lt_cv_ld_reload_flag
test -n "$reload_flag" && reload_flag=" $reload_flag"

echo $ac_n "checking how to recognise dependant libraries""... $ac_c" 1>&6
echo "configure:1807: checking how to recognise dependant libraries" >&5
if eval "test \"`echo '$''{'lt_cv_deplibs_check_method'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  lt_cv_file_magic_cmd='$MAGIC_CMD'
lt_cv_file_magic_test_file=
lt_cv_deplibs_check_method='unknown'
# Need to set the preceding variable on all platforms that support
# interlibrary dependencies.
# 'none' -- dependencies not supported.
# `unknown' -- same as none, but documents that we really don't know.
# 'pass_all' -- all dependencies passed with no checks.
# 'test_compile' -- check by making test program.
# 'file_magic [[regex]]' -- check by looking for files in library path
# which responds to the $file_magic_cmd with a given egrep regex.
# If you have `file' or equivalent on your system and you're not sure
# whether `pass_all' will *always* work, you probably want this one.

case $host_os in
aix4* | aix5*)
  lt_cv_deplibs_check_method=pass_all
  ;;

beos*)
  lt_cv_deplibs_check_method=pass_all
  ;;

bsdi4*)
  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
  lt_cv_file_magic_cmd='/usr/bin/file -L'
  lt_cv_file_magic_test_file=/shlib/libc.so
  ;;

cygwin* | mingw* | pw32*)
  lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'
  lt_cv_file_magic_cmd='$OBJDUMP -f'
  ;;

darwin* | rhapsody*)
  lt_cv_deplibs_check_method='file_magic Mach-O dynamically linked shared library'
  lt_cv_file_magic_cmd='/usr/bin/file -L'
  case "$host_os" in
  rhapsody* | darwin1.[012])
    lt_cv_file_magic_test_file=`echo /System/Library/Frameworks/System.framework/Versions/*/System | head -1`
    ;;
  *) # Darwin 1.3 on
    lt_cv_file_magic_test_file='/usr/lib/libSystem.dylib'
    ;;
  esac
  ;;

freebsd*)
  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
    case $host_cpu in
    i*86 )
      # Not sure whether the presence of OpenBSD here was a mistake.
      # Let's accept both of them until this is cleared up.
      lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD)/i[3-9]86 (compact )?demand paged shared library'
      lt_cv_file_magic_cmd=/usr/bin/file
      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
      ;;
    esac
  else
    lt_cv_deplibs_check_method=pass_all
  fi
  ;;

gnu*)
  lt_cv_deplibs_check_method=pass_all
  ;;

hpux10.20*|hpux11*)
  lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9].[0-9]) shared library'
  lt_cv_file_magic_cmd=/usr/bin/file
  lt_cv_file_magic_test_file=/usr/lib/libc.sl
  ;;

irix5* | irix6*)
  case $host_os in
  irix5*)
    # this will be overridden with pass_all, but let us keep it just in case
    lt_cv_deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1"
    ;;
  *)
    case $LD in
    *-32|*"-32 ") libmagic=32-bit;;
    *-n32|*"-n32 ") libmagic=N32;;
    *-64|*"-64 ") libmagic=64-bit;;
    *) libmagic=never-match;;
    esac
    # this will be overridden with pass_all, but let us keep it just in case
    lt_cv_deplibs_check_method="file_magic ELF ${libmagic} MSB mips-[1234] dynamic lib MIPS - version 1"
    ;;
  esac
  lt_cv_file_magic_test_file=`echo /lib${libsuff}/libc.so*`
  lt_cv_deplibs_check_method=pass_all
  ;;

# This must be Linux ELF.
linux-gnu*)
  case $host_cpu in
  alpha* | hppa* | i*86 | powerpc* | sparc* | ia64* )
    lt_cv_deplibs_check_method=pass_all ;;
  *)
    # glibc up to 2.1.1 does not perform some relocations on ARM
    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )' ;;
  esac
  lt_cv_file_magic_test_file=`echo /lib/libc.so* /lib/libc-*.so`
  ;;

netbsd*)
  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then
    lt_cv_deplibs_check_method='match_pattern /lib[^/\.]+\.so\.[0-9]+\.[0-9]+$'
  else
    lt_cv_deplibs_check_method='match_pattern /lib[^/\.]+\.so$'
  fi
  ;;

newos6*)
  lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
  lt_cv_file_magic_cmd=/usr/bin/file
  lt_cv_file_magic_test_file=/usr/lib/libnls.so
  ;;

openbsd*)
  lt_cv_file_magic_cmd=/usr/bin/file
  lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
  if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`" || test "$host_os-$host_cpu" = "openbsd2.8-powerpc"; then
    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB shared object'
  else
    lt_cv_deplibs_check_method='file_magic OpenBSD.* shared library'
  fi
  ;;

osf3* | osf4* | osf5*)
  # this will be overridden with pass_all, but let us keep it just in case
  lt_cv_deplibs_check_method='file_magic COFF format alpha shared library'
  lt_cv_file_magic_test_file=/shlib/libc.so
  lt_cv_deplibs_check_method=pass_all
  ;;

sco3.2v5*)
  lt_cv_deplibs_check_method=pass_all
  ;;

solaris*)
  lt_cv_deplibs_check_method=pass_all
  lt_cv_file_magic_test_file=/lib/libc.so
  ;;

sysv5uw[78]* | sysv4*uw2*)
  lt_cv_deplibs_check_method=pass_all
  ;;

sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
  case $host_vendor in
  motorola)
    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
    ;;
  ncr)
    lt_cv_deplibs_check_method=pass_all
    ;;
  sequent)
    lt_cv_file_magic_cmd='/bin/file'
    lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
    ;;
  sni)
    lt_cv_file_magic_cmd='/bin/file'
    lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
    lt_cv_file_magic_test_file=/lib/libc.so
    ;;
  esac
  ;;
esac

fi

echo "$ac_t""$lt_cv_deplibs_check_method" 1>&6
file_magic_cmd=$lt_cv_file_magic_cmd
deplibs_check_method=$lt_cv_deplibs_check_method

echo $ac_n "checking for object suffix""... $ac_c" 1>&6
echo "configure:1990: checking for object suffix" >&5
if eval "test \"`echo '$''{'ac_cv_objext'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  rm -f conftest*
echo 'int i = 1;' > conftest.$ac_ext
if { (eval echo configure:1996: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
  for ac_file in conftest.*; do
    case $ac_file in
    *.c) ;;
    *) ac_cv_objext=`echo $ac_file | sed -e s/conftest.//` ;;
    esac
  done
else
  { echo "configure: error: installation or configuration problem; compiler does not work" 1>&2; exit 1; }
fi
rm -f conftest*
fi

echo "$ac_t""$ac_cv_objext" 1>&6
OBJEXT=$ac_cv_objext
ac_objext=$ac_cv_objext



echo $ac_n "checking for executable suffix""... $ac_c" 1>&6
echo "configure:2016: checking for executable suffix" >&5
if eval "test \"`echo '$''{'ac_cv_exeext'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  if test "$CYGWIN" = yes || test "$MINGW32" = yes; then
  ac_cv_exeext=.exe
else
  rm -f conftest*
  echo 'int main () { return 0; }' > conftest.$ac_ext
  ac_cv_exeext=
  if { (eval echo configure:2026: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
    for file in conftest.*; do
      case $file in
      *.c | *.o | *.obj) ;;
      *) ac_cv_exeext=`echo $file | sed -e s/conftest//` ;;
      esac
    done
  else
    { echo "configure: error: installation or configuration problem: compiler cannot create executables." 1>&2; exit 1; }
  fi
  rm -f conftest*
  test x"${ac_cv_exeext}" = x && ac_cv_exeext=no
fi
fi

EXEEXT=""
test x"${ac_cv_exeext}" != xno && EXEEXT=${ac_cv_exeext}
echo "$ac_t""${ac_cv_exeext}" 1>&6
ac_exeext=$EXEEXT

if test $host != $build; then
  ac_tool_prefix=${host_alias}-
else
  ac_tool_prefix=
fi




# Check for command to grab the raw symbol name followed by C symbol from nm.
echo $ac_n "checking command to parse $NM output""... $ac_c" 1>&6
echo "configure:2057: checking command to parse $NM output" >&5
if eval "test \"`echo '$''{'lt_cv_sys_global_symbol_pipe'+set}'`\" = set"; then
  echo $ac_n "(cached) $ac_c" 1>&6
else
  
# These are sane defaults that work on at least a few old systems.
# [They come from Ultrix.  What could be older than Ultrix?!! ;)]

# Character class describing NM global symbol codes.
symcode='[BCDEGRST]'

# Regexp to match symbols that can be accessed directly from C.
sympat='\([_A-Za-z][_A-Za-z0-9]*\)'

# Transform the above into a raw symbol and a C symbol.
symxfrm='\1 \2\3 \3'

# Transform an extracted symbol line into a proper C declaration
lt_cv_global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"

# Transform an extracted symbol line into symbol name and symbol address
lt_cv_global_symbol_to_c_name_address="sed -n -e 's/^: \([^ ]*\) $/  {\\\"\1\\\", (lt_ptr) 0},/p' -e 's/^$symcode \([^ ]*\) \([^ ]*\)$/  {\"\2\", (lt_ptr) \&\2},/p'"

# Define system-specific variables.
case $host_os in
aix*)
  symcode='[BCDT]'
  ;;
cygwin* | mingw* | pw32*