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Add configure check for gzclearerr() when using system zlib.

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This commit is contained in:
Todd C. Miller
2022-02-24 19:13:53 -07:00
parent 68bc030c0c
commit 42f735c8dd
2 changed files with 11 additions and 11 deletions
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20
configure vendored
View File

@@ -26241,9 +26241,9 @@ fi
case "$enable_zlib" in
yes)
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gzdopen in -lz" >&5
printf %s "checking for gzdopen in -lz... " >&6; }
if test ${ac_cv_lib_z_gzdopen+y}
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for gzclearerr in -lz" >&5
printf %s "checking for gzclearerr in -lz... " >&6; }
if test ${ac_cv_lib_z_gzclearerr+y}
then :
printf %s "(cached) " >&6
else $as_nop
@@ -26255,28 +26255,28 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* Override any GCC internal prototype to avoid an error.
Use char because int might match the return type of a GCC
builtin and then its argument prototype would still apply. */
char gzdopen ();
char gzclearerr ();
int
main (void)
{
return gzdopen ();
return gzclearerr ();
;
return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"
then :
ac_cv_lib_z_gzdopen=yes
ac_cv_lib_z_gzclearerr=yes
else $as_nop
ac_cv_lib_z_gzdopen=no
ac_cv_lib_z_gzclearerr=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.beam \
conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_z_gzdopen" >&5
printf "%s\n" "$ac_cv_lib_z_gzdopen" >&6; }
if test "x$ac_cv_lib_z_gzdopen" = xyes
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_z_gzclearerr" >&5
printf "%s\n" "$ac_cv_lib_z_gzclearerr" >&6; }
if test "x$ac_cv_lib_z_gzclearerr" = xyes
then :
for ac_header in zlib.h

2
configure.ac
View File

@@ -3584,7 +3584,7 @@ dnl prepend the include dir to make sure we get the right zlib header.
dnl
case "$enable_zlib" in
yes)
AC_CHECK_LIB(z, gzdopen, [
AC_CHECK_LIB(z, gzclearerr, [
AC_CHECK_HEADERS([zlib.h], [ZLIB="-lz"], [enable_zlib=builtin])
])
;;