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zsh/aczsh.m4

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dnl
dnl Autconf tests for zsh.
dnl
dnl Copyright (c) 1995-1997 Richard Coleman
dnl All rights reserved.
dnl
dnl Permission is hereby granted, without written agreement and without
dnl license or royalty fees, to use, copy, modify, and distribute this
dnl software and to distribute modified versions of this software for any
dnl purpose, provided that the above copyright notice and the following
dnl two paragraphs appear in all copies of this software.
dnl
dnl In no event shall Richard Coleman or the Zsh Development Group be liable
dnl to any party for direct, indirect, special, incidental, or consequential
dnl damages arising out of the use of this software and its documentation,
dnl even if Richard Coleman and the Zsh Development Group have been advised of
dnl the possibility of such damage.
dnl
dnl Richard Coleman and the Zsh Development Group specifically disclaim any
dnl warranties, including, but not limited to, the implied warranties of
dnl merchantability and fitness for a particular purpose. The software
dnl provided hereunder is on an "as is" basis, and Richard Coleman and the
dnl Zsh Development Group have no obligation to provide maintenance,
dnl support, updates, enhancements, or modifications.
dnl
dnl
dnl Code from the configure system for bash 2.03 (not zsh copyright).
dnl If available, use support for large files unless the user specified
dnl one of the CPPFLAGS, LDFLAGS, or LIBS variables (<eggert@twinsun.com>
dnl via GNU patch 2.5)
dnl
AC_DEFUN(zsh_LARGE_FILE_SUPPORT,
[AC_MSG_CHECKING(whether large file support needs explicit enabling)
ac_getconfs=''
ac_result=yes
ac_set=''
ac_shellvars='CPPFLAGS LDFLAGS LIBS'
for ac_shellvar in $ac_shellvars; do
case $ac_shellvar in
CPPFLAGS) ac_lfsvar=LFS_CFLAGS ;;
*) ac_lfsvar=LFS_$ac_shellvar ;;
esac
(getconf $ac_lfsvar) >/dev/null 2>&1 || { ac_result=no; break; }
ac_getconf=`getconf $ac_lfsvar`
if test -n "$ac_getconf" && test "$ac_getconf" != "undefined"; then
eval test '"${'$ac_shellvar'+set}"' = set && ac_set=$ac_shellvar
ac_getconfs=$ac_getconfs$ac_getconf
eval ac_test_$ac_shellvar="\$ac_getconf"
else
eval ac_test_$ac_shellvar="\$$ac_shellvar"
fi
done
case "$ac_result$ac_getconfs" in
yes) ac_result=no ;;
esac
case "$ac_result$ac_set" in
yes?*) test "x$ac_set" != "xLDFLAGS" -o "x$auto_ldflags" = x && {
ac_result="yes, but $ac_set is already set, so use its settings"
}
esac
AC_MSG_RESULT($ac_result)
case $ac_result in
yes)
for ac_shellvar in $ac_shellvars; do
case "`eval echo $ac_shellvar-\\\$ac_test_$ac_shellvar`" in
CPPFLAGS*-D_LARGEFILE_SOURCE*) eval $ac_shellvar=\$ac_test_$ac_shellvar
;;
CPPFLAGS*)
eval $ac_shellvar="\"-D_LARGEFILE_SOURCE \$ac_test_$ac_shellvar\""
;;
*) eval $ac_shellvar=\$ac_test_$ac_shellvar
esac
done ;;
esac
])
dnl
dnl zsh_64_BIT_TYPE
dnl Check whether the first argument works as a 64-bit type.
dnl If there is a non-zero third argument, we just assume it works
dnl when we're cross compiling. This is to allow a type to be
dnl specified directly as --enable-lfs="long long".
dnl Sets the variable given in the second argument to the first argument
dnl if the test worked, `no' otherwise. Be careful testing this, as it
dnl may produce two words `long long' on an unquoted substitution.
dnl Also check that the compiler does not mind it being cast to int.
dnl This macro does not produce messages as it may be run several times
dnl before finding the right type.
dnl
AC_DEFUN(zsh_64_BIT_TYPE,
[AC_TRY_RUN([
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
main()
{
$1 foo = 0;
int bar = (int) foo;
return sizeof($1) != 8;
}
], $2="$1", $2=no,
[if test x$3 != x ; then
$2="$1"
else
$2=no
fi])
])
dnl
dnl zsh_SHARED_FUNCTION
dnl
dnl This is just a frontend to zsh_SHARED_SYMBOL
dnl
dnl Usage: zsh_SHARED_FUNCTION(name[,rettype[,paramtype]])
dnl
AC_DEFUN(zsh_SHARED_FUNCTION,
[zsh_SHARED_SYMBOL($1, ifelse([$2], ,[int ],[$2]) $1 [(]ifelse([$3], ,[ ],[$3])[)], $1)])
dnl
dnl zsh_SHARED_VARIABLE
dnl
dnl This is just a frontend to zsh_SHARED_SYMBOL
dnl
dnl Usage: zsh_SHARED_VARIABLE(name[,type])
dnl
AC_DEFUN(zsh_SHARED_VARIABLE,
[zsh_SHARED_SYMBOL($1, ifelse([$2], ,[int ],[$2]) $1, [&$1])])
dnl
dnl zsh_SHARED_SYMBOL
dnl Check whether symbol is available in static or shared library
dnl
dnl On some systems, static modifiable library symbols (such as environ)
dnl may appear only in statically linked libraries. If this is the case,
dnl then two shared libraries that reference the same symbol, each linked
dnl with the static library, could be given distinct copies of the symbol.
dnl
dnl Usage: zsh_SHARED_SYMBOL(name,declaration,address)
dnl Sets zsh_cv_shared_$1 cache variable to yes/no
dnl
AC_DEFUN(zsh_SHARED_SYMBOL,
[AC_CACHE_CHECK([if $1 is available in shared libraries],
zsh_cv_shared_$1,
[if test "$zsh_cv_func_dlsym_needs_underscore" = yes; then
us=_
else
us=
fi
echo '
void *zsh_getaddr1()
{
#ifdef __CYGWIN__
__attribute__((__dllimport__))
#endif
extern $2;
return $3;
};
' > conftest1.c
sed 's/zsh_getaddr1/zsh_getaddr2/' < conftest1.c > conftest2.c
if AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&AC_FD_CC) &&
AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest2.c 1>&AC_FD_CC) &&
AC_TRY_COMMAND($DLLD -o conftest2.$DL_EXT $LDFLAGS $DLLDFLAGS conftest2.o $LIBS 1>&AC_FD_CC); then
AC_TRY_RUN([
#ifdef HPUXDYNAMIC
#include <dl.h>
#define RTLD_LAZY BIND_DEFERRED
#define RTLD_GLOBAL DYNAMIC_PATH
char *zsh_gl_sym_addr ;
#define dlopen(file,mode) (void *)shl_load((file), (mode), (long) 0)
#define dlclose(handle) shl_unload((shl_t)(handle))
#define dlsym(handle,name) (zsh_gl_sym_addr=0,shl_findsym((shl_t *)&(handle),name,TYPE_UNDEFINED,&zsh_gl_sym_addr), (void *)zsh_gl_sym_addr)
#define dlerror() 0
#else
#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
#else
#include <sys/types.h>
#include <nlist.h>
#include <link.h>
#endif
#endif
#ifndef RTLD_LAZY
#define RTLD_LAZY 1
#endif
#ifndef RTLD_GLOBAL
#define RTLD_GLOBAL 0
#endif
main()
{
void *handle1, *handle2;
void *(*zsh_getaddr1)(), *(*zsh_getaddr2)();
void *sym1, *sym2;
handle1 = dlopen("./conftest1.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
if(!handle1) exit(1);
handle2 = dlopen("./conftest2.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
if(!handle2) exit(1);
zsh_getaddr1 = (void *(*)()) dlsym(handle1, "${us}zsh_getaddr1");
zsh_getaddr2 = (void *(*)()) dlsym(handle2, "${us}zsh_getaddr2");
sym1 = zsh_getaddr1();
sym2 = zsh_getaddr2();
if(!sym1 || !sym2) exit(1);
if(sym1 != sym2) exit(1);
dlclose(handle1);
handle1 = dlopen("./conftest1.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
if(!handle1) exit(1);
zsh_getaddr1 = (void *(*)()) dlsym(handle1, "${us}zsh_getaddr1");
sym1 = zsh_getaddr1();
if(!sym1) exit(1);
if(sym1 != sym2) exit(1);
exit(0);
}
], [zsh_cv_shared_$1=yes],
[zsh_cv_shared_$1=no],
[zsh_cv_shared_$1=no]
)
else
zsh_cv_shared_$1=no
fi
])
])
dnl
dnl zsh_SYS_DYNAMIC_CLASH
dnl Check whether symbol name clashes in shared libraries are acceptable.
dnl
AC_DEFUN(zsh_SYS_DYNAMIC_CLASH,
[AC_CACHE_CHECK([if name clashes in shared objects are OK],
zsh_cv_sys_dynamic_clash_ok,
[if test "$zsh_cv_func_dlsym_needs_underscore" = yes; then
us=_
else
us=
fi
echo 'int fred () { return 42; }' > conftest1.c
echo 'int fred () { return 69; }' > conftest2.c
if AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&AC_FD_CC) &&
AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest2.c 1>&AC_FD_CC) &&
AC_TRY_COMMAND($DLLD -o conftest2.$DL_EXT $LDFLAGS $DLLDFLAGS conftest2.o $LIBS 1>&AC_FD_CC); then
AC_TRY_RUN([
#ifdef HPUXDYNAMIC
#include <dl.h>
#define RTLD_LAZY BIND_DEFERRED
#define RTLD_GLOBAL DYNAMIC_PATH
char *zsh_gl_sym_addr ;
#define dlopen(file,mode) (void *)shl_load((file), (mode), (long) 0)
#define dlclose(handle) shl_unload((shl_t)(handle))
#define dlsym(handle,name) (zsh_gl_sym_addr=0,shl_findsym((shl_t *)&(handle),name,TYPE_UNDEFINED,&zsh_gl_sym_addr), (void *)zsh_gl_sym_addr)
#define dlerror() 0
#else
#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
#else
#include <sys/types.h>
#include <nlist.h>
#include <link.h>
#endif
#endif
#ifndef RTLD_LAZY
#define RTLD_LAZY 1
#endif
#ifndef RTLD_GLOBAL
#define RTLD_GLOBAL 0
#endif
main()
{
void *handle1, *handle2;
int (*fred1)(), (*fred2)();
handle1 = dlopen("./conftest1.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
if(!handle1) exit(1);
handle2 = dlopen("./conftest2.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
if(!handle2) exit(1);
fred1 = (int (*)()) dlsym(handle1, "${us}fred");
fred2 = (int (*)()) dlsym(handle2, "${us}fred");
if(!fred1 || !fred2) exit(1);
exit((*fred1)() != 42 || (*fred2)() != 69);
}
], [zsh_cv_sys_dynamic_clash_ok=yes],
[zsh_cv_sys_dynamic_clash_ok=no],
[zsh_cv_sys_dynamic_clash_ok=no]
)
else
zsh_cv_sys_dynamic_clash_ok=no
fi
])
if test "$zsh_cv_sys_dynamic_clash_ok" = yes; then
AC_DEFINE(DYNAMIC_NAME_CLASH_OK)
fi
])
dnl
dnl zsh_SYS_DYNAMIC_GLOBAL
dnl Check whether symbols in one dynamically loaded library are
dnl available to another dynamically loaded library.
dnl
AC_DEFUN(zsh_SYS_DYNAMIC_GLOBAL,
[AC_CACHE_CHECK([for working RTLD_GLOBAL],
zsh_cv_sys_dynamic_rtld_global,
[if test "$zsh_cv_func_dlsym_needs_underscore" = yes; then
us=_
else
us=
fi
echo 'int fred () { return 42; }' > conftest1.c
echo 'extern int fred(); int barney () { return fred() + 27; }' > conftest2.c
if AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&AC_FD_CC) &&
AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest2.c 1>&AC_FD_CC) &&
AC_TRY_COMMAND($DLLD -o conftest2.$DL_EXT $LDFLAGS $DLLDFLAGS conftest2.o $LIBS 1>&AC_FD_CC); then
AC_TRY_RUN([
#ifdef HPUXDYNAMIC
#include <dl.h>
#define RTLD_LAZY BIND_DEFERRED
#define RTLD_GLOBAL DYNAMIC_PATH
char *zsh_gl_sym_addr ;
#define dlopen(file,mode) (void *)shl_load((file), (mode), (long) 0)
#define dlclose(handle) shl_unload((shl_t)(handle))
#define dlsym(handle,name) (zsh_gl_sym_addr=0,shl_findsym((shl_t *)&(handle),name,TYPE_UNDEFINED,&zsh_gl_sym_addr), (void *)zsh_gl_sym_addr)
#define dlerror() 0
#else
#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
#else
#include <sys/types.h>
#include <nlist.h>
#include <link.h>
#endif
#endif
#ifndef RTLD_LAZY
#define RTLD_LAZY 1
#endif
#ifndef RTLD_GLOBAL
#define RTLD_GLOBAL 0
#endif
main()
{
void *handle;
int (*barneysym)();
handle = dlopen("./conftest1.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
if(!handle) exit(1);
handle = dlopen("./conftest2.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
if(!handle) exit(1);
barneysym = (int (*)()) dlsym(handle, "${us}barney");
if(!barneysym) exit(1);
exit((*barneysym)() != 69);
}
], [zsh_cv_sys_dynamic_rtld_global=yes],
[zsh_cv_sys_dynamic_rtld_global=no],
[zsh_cv_sys_dynamic_rtld_global=no]
)
else
zsh_cv_sys_dynamic_rtld_global=no
fi
])
])
dnl
dnl zsh_SYS_DYNAMIC_EXECSYMS
dnl Check whether symbols in the executable are available to dynamically
dnl loaded libraries.
dnl
AC_DEFUN(zsh_SYS_DYNAMIC_EXECSYMS,
[AC_CACHE_CHECK([whether symbols in the executable are available],
zsh_cv_sys_dynamic_execsyms,
[if test "$zsh_cv_func_dlsym_needs_underscore" = yes; then
us=_
else
us=
fi
echo 'extern int fred(); int barney () { return fred() + 27; }' > conftest1.c
if AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&AC_FD_CC); then
save_ldflags=$LDFLAGS
LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS"
AC_TRY_RUN([
#ifdef HPUXDYNAMIC
#include <dl.h>
#define RTLD_LAZY BIND_DEFERRED
#define RTLD_GLOBAL DYNAMIC_PATH
char *zsh_gl_sym_addr ;
#define dlopen(file,mode) (void *)shl_load((file), (mode), (long) 0)
#define dlclose(handle) shl_unload((shl_t)(handle))
#define dlsym(handle,name) (zsh_gl_sym_addr=0,shl_findsym((shl_t *)&(handle),name,TYPE_UNDEFINED,&zsh_gl_sym_addr), (void *)zsh_gl_sym_addr)
#define dlerror() 0
#else
#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
#else
#include <sys/types.h>
#include <nlist.h>
#include <link.h>
#endif
#endif
#ifndef RTLD_LAZY
#define RTLD_LAZY 1
#endif
#ifndef RTLD_GLOBAL
#define RTLD_GLOBAL 0
#endif
main()
{
void *handle;
int (*barneysym)();
handle = dlopen("./conftest1.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
if(!handle) exit(1);
barneysym = (int (*)()) dlsym(handle, "${us}barney");
if(!barneysym) exit(1);
exit((*barneysym)() != 69);
}
int fred () { return 42; }
], [zsh_cv_sys_dynamic_execsyms=yes],
[zsh_cv_sys_dynamic_execsyms=no],
[zsh_cv_sys_dynamic_execsyms=no]
)
LDFLAGS=$save_ldflags
else
zsh_cv_sys_dynamic_execsyms=no
fi
])
])
dnl
dnl zsh_SYS_DYNAMIC_STRIP_EXE
dnl Check whether it is safe to strip executables.
dnl
AC_DEFUN(zsh_SYS_DYNAMIC_STRIP_EXE,
[AC_REQUIRE([zsh_SYS_DYNAMIC_EXECSYMS])
AC_CACHE_CHECK([whether executables can be stripped],
zsh_cv_sys_dynamic_strip_exe,
[if test "$zsh_cv_sys_dynamic_execsyms" != yes; then
zsh_cv_sys_dynamic_strip_exe=yes
elif
if test "$zsh_cv_func_dlsym_needs_underscore" = yes; then
us=_
else
us=
fi
echo 'extern int fred(); int barney() { return fred() + 27; }' > conftest1.c
AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS conftest1.o $LIBS 1>&AC_FD_CC); then
save_ldflags=$LDFLAGS
LDFLAGS="$LDFLAGS $EXTRA_LDFLAGS -s"
AC_TRY_RUN([
#ifdef HPUXDYNAMIC
#include <dl.h>
#define RTLD_LAZY BIND_DEFERRED
#define RTLD_GLOBAL DYNAMIC_PATH
char *zsh_gl_sym_addr ;
#define dlopen(file,mode) (void *)shl_load((file), (mode), (long) 0)
#define dlclose(handle) shl_unload((shl_t)(handle))
#define dlsym(handle,name) (zsh_gl_sym_addr=0,shl_findsym((shl_t *)&(handle),name,TYPE_UNDEFINED,&zsh_gl_sym_addr), (void *)zsh_gl_sym_addr)
#define dlerror() 0
#else
#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
#else
#include <sys/types.h>
#include <nlist.h>
#include <link.h>
#endif
#endif
#ifndef RTLD_LAZY
#define RTLD_LAZY 1
#endif
#ifndef RTLD_GLOBAL
#define RTLD_GLOBAL 0
#endif
main()
{
void *handle;
int (*barneysym)();
handle = dlopen("./conftest1.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
if(!handle) exit(1);
barneysym = (int (*)()) dlsym(handle, "${us}barney");
if(!barneysym) exit(1);
exit((*barneysym)() != 69);
}
int fred () { return 42; }
], [zsh_cv_sys_dynamic_strip_exe=yes],
[zsh_cv_sys_dynamic_strip_exe=no],
[zsh_cv_sys_dynamic_strip_exe=no]
)
LDFLAGS=$save_ldflags
else
zsh_cv_sys_dynamic_strip_exe=no
fi
])
])
dnl
dnl zsh_SYS_DYNAMIC_STRIP_EXE
dnl Check whether it is safe to strip dynamically loaded libraries.
dnl
AC_DEFUN(zsh_SYS_DYNAMIC_STRIP_LIB,
[AC_CACHE_CHECK([whether libraries can be stripped],
zsh_cv_sys_dynamic_strip_lib,
[if test "$zsh_cv_func_dlsym_needs_underscore" = yes; then
us=_
else
us=
fi
echo 'int fred () { return 42; }' > conftest1.c
if AC_TRY_COMMAND($CC -c $CFLAGS $CPPFLAGS $DLCFLAGS conftest1.c 1>&AC_FD_CC) &&
AC_TRY_COMMAND($DLLD -o conftest1.$DL_EXT $LDFLAGS $DLLDFLAGS -s conftest1.o $LIBS 1>&AC_FD_CC); then
AC_TRY_RUN([
#ifdef HPUXDYNAMIC
#include <dl.h>
#define RTLD_LAZY BIND_DEFERRED
#define RTLD_GLOBAL DYNAMIC_PATH
char *zsh_gl_sym_addr ;
#define dlopen(file,mode) (void *)shl_load((file), (mode), (long) 0)
#define dlclose(handle) shl_unload((shl_t)(handle))
#define dlsym(handle,name) (zsh_gl_sym_addr=0,shl_findsym((shl_t *)&(handle),name,TYPE_UNDEFINED,&zsh_gl_sym_addr), (void *)zsh_gl_sym_addr)
#define dlerror() 0
#else
#ifdef HAVE_DLFCN_H
#include <dlfcn.h>
#else
#include <sys/types.h>
#include <nlist.h>
#include <link.h>
#endif
#endif
#ifndef RTLD_LAZY
#define RTLD_LAZY 1
#endif
#ifndef RTLD_GLOBAL
#define RTLD_GLOBAL 0
#endif
main()
{
void *handle;
int (*fredsym)();
handle = dlopen("./conftest1.$DL_EXT", RTLD_LAZY | RTLD_GLOBAL);
if(!handle) exit(1);
fredsym = (int (*)()) dlsym(handle, "${us}fred");
if(!fredsym) exit(1);
exit((*fredsym)() != 42);
}
], [zsh_cv_sys_dynamic_strip_lib=yes],
[zsh_cv_sys_dynamic_strip_lib=no],
[zsh_cv_sys_dynamic_strip_lib=no]
)
else
zsh_cv_sys_dynamic_strip_lib=no
fi
])
])
dnl
dnl zsh_PATH_UTMP(filename)
dnl Search for a specified utmp-type file.
dnl
AC_DEFUN(zsh_PATH_UTMP,
[AC_CACHE_CHECK([for $1 file], [zsh_cv_path_$1],
[for dir in /etc /usr/etc /var/adm /usr/adm /var/run /var/log ./conftest; do
zsh_cv_path_$1=${dir}/$1
test -f $zsh_cv_path_$1 && break
zsh_cv_path_$1=no
done
])
AH_TEMPLATE([PATH_]translit($1, [a-z], [A-Z])[_FILE],
[Define to be location of ]$1[ file.])
if test $zsh_cv_path_$1 != no; then
AC_DEFINE_UNQUOTED([PATH_]translit($1, [a-z], [A-Z])[_FILE],
"$zsh_cv_path_$1")
fi
])
dnl
dnl zsh_TYPE_EXISTS(#includes, type name)
dnl Check whether a specified type exists.
dnl
AC_DEFUN(zsh_TYPE_EXISTS,
[AC_CACHE_CHECK([for $2], [zsh_cv_type_exists_[]translit($2, [ ], [_])],
[AC_TRY_COMPILE([$1], [$2 testvar;],
[zsh_cv_type_exists_[]translit($2, [ ], [_])=yes],
[zsh_cv_type_exists_[]translit($2, [ ], [_])=no])
])
AH_TEMPLATE([HAVE_]translit($2, [ a-z], [_A-Z]),
[Define to 1 if ]$2[ is defined by a system header])
if test $zsh_cv_type_exists_[]translit($2, [ ], [_]) = yes; then
AC_DEFINE([HAVE_]translit($2, [ a-z], [_A-Z]))
fi
])
dnl
dnl zsh_STRUCT_MEMBER(#includes, type name, member name)
dnl Check whether a specified aggregate type exists and contains
dnl a specified member.
dnl
AC_DEFUN(zsh_STRUCT_MEMBER,
[AC_CACHE_CHECK([for $3 in $2], [zsh_cv_struct_member_[]translit($2, [ ], [_])_$3],
[AC_TRY_COMPILE([$1], [$2 testvar; testvar.$3;],
[zsh_cv_struct_member_[]translit($2, [ ], [_])_$3=yes],
[zsh_cv_struct_member_[]translit($2, [ ], [_])_$3=no])
])
AH_TEMPLATE([HAVE_]translit($2_$3, [ a-z], [_A-Z]),
[Define if your system's ]$2[ has a member named ]$3[.])
if test $zsh_cv_struct_member_[]translit($2, [ ], [_])_$3 = yes; then
AC_DEFINE([HAVE_]translit($2_$3, [ a-z], [_A-Z]))
fi
])
dnl
dnl zsh_ARG_PROGRAM
dnl Handle AC_ARG_PROGRAM substitutions into other zsh configure macros.
dnl After processing this macro, the configure script may refer to
dnl and $tzsh_name, and @tzsh@ is defined for make substitutions.
dnl
AC_DEFUN(zsh_ARG_PROGRAM,
[AC_ARG_PROGRAM
# Un-double any \ or $ (doubled by AC_ARG_PROGRAM).
cat <<\EOF_SED > conftestsed
s,\\\\,\\,g; s,\$\$,$,g
EOF_SED
zsh_transform_name=`echo "${program_transform_name}" | sed -f conftestsed`
rm -f conftestsed
tzsh_name=`echo zsh | sed -e "${zsh_transform_name}"`
# Double any \ or $ in the transformed name that results.
cat <<\EOF_SED >> conftestsed
s,\\,\\\\,g; s,\$,$$,g
EOF_SED
tzsh=`echo ${tzsh_name} | sed -f conftestsed`
rm -f conftestsed
AC_SUBST(tzsh)dnl
])
AC_DEFUN(zsh_COMPILE_FLAGS,
[AC_ARG_ENABLE(cppflags,
AC_HELP_STRING([--enable-cppflags=...], [specify C preprocessor flags]),
if test "$enableval" = "yes"
then CPPFLAGS="$1"
else CPPFLAGS="$enable_cppflags"
fi)
AC_ARG_ENABLE(cflags,
AC_HELP_STRING([--enable-cflags=...], [specify C compiler flags]),
if test "$enableval" = "yes"
then CFLAGS="$2"
else CFLAGS="$enable_cflags"
fi)
AC_ARG_ENABLE(ldflags,
AC_HELP_STRING([--enable-ldflags=...], [specify linker flags]),
if test "$enableval" = "yes"
then LDFLAGS="$3"
else LDFLAGS="$enable_ldflags"
fi)
AC_ARG_ENABLE(libs,
AC_HELP_STRING([--enable-libs=...], [specify link libraries]),
if test "$enableval" = "yes"
then LIBS="$4"
else LIBS="$enable_libs"
fi)])
dnl
dnl zsh_CHECK_SOCKLEN_T
dnl
dnl check type of third argument of some network functions; currently
dnl tested are size_t *, unsigned long *, int *.
dnl call the result ZSOCKLEN_T since some systems have SOCKLEN_T already
dnl
AC_DEFUN([zsh_CHECK_SOCKLEN_T],[
AC_CACHE_CHECK(
[base type of the third argument to accept],
[zsh_cv_type_socklen_t],
[zsh_cv_type_socklen_t=
for zsh_type in socklen_t int "unsigned long" size_t ; do
AC_TRY_COMPILE(
[#include <sys/types.h>
#include <sys/socket.h>],
[extern int accept (int, struct sockaddr *, $zsh_type *);],
[zsh_cv_type_socklen_t="$zsh_type"; break],
[]
)
done
if test -z "$zsh_cv_type_socklen_t"; then
zsh_cv_type_socklen_t=int
fi]
)
AC_DEFINE_UNQUOTED([ZSOCKLEN_T], [$zsh_cv_type_socklen_t],
[Define to the base type of the third argument of accept])]
)
dnl Check for limit $1 e.g. RLIMIT_RSS.
AC_DEFUN(zsh_LIMIT_PRESENT,
[AH_TEMPLATE([HAVE_]$1,
[Define to 1 if ]$1[ is present (whether or not as a macro).])
AC_CACHE_CHECK([for limit $1],
zsh_cv_have_$1,
[AC_TRY_COMPILE([
#include <sys/types.h>
#ifdef HAVE_SYS_TIME_H
#include <sys/time.h>
#endif
#include <sys/resource.h>],
[$1],
zsh_cv_have_$1=yes,
zsh_cv_have_$1=no)])
if test $zsh_cv_have_$1 = yes; then
AC_DEFINE(HAVE_$1)
fi])
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