configure: Remove the memset check and the HAVE_MEMSET macro
The compatibility workaround png_memset() has been removed long ago.
The availability of memset() is a platform requirement.
diff --git a/config.h.in b/config.h.in
index a0ec9bc..2931048 100644
--- a/config.h.in
+++ b/config.h.in
@@ -18,9 +18,6 @@
/* Define to 1 if you have the <memory.h> header file. */
#undef HAVE_MEMORY_H
-/* Define to 1 if you have the `memset' function. */
-#undef HAVE_MEMSET
-
/* Define to 1 if you have the `pow' function. */
#undef HAVE_POW
diff --git a/configure b/configure
index d86d8ed..17fa130 100755
--- a/configure
+++ b/configure
@@ -13066,19 +13066,6 @@
fi
-for ac_func in memset
-do :
- ac_fn_c_check_func "$LINENO" "memset" "ac_cv_func_memset"
-if test "x$ac_cv_func_memset" = xyes; then :
- cat >>confdefs.h <<_ACEOF
-#define HAVE_MEMSET 1
-_ACEOF
-
-else
- as_fn_error $? "memset not found in libc" "$LINENO" 5
-fi
-done
-
for ac_func in pow
do :
ac_fn_c_check_func "$LINENO" "pow" "ac_cv_func_pow"
diff --git a/configure.ac b/configure.ac
index 63287c5..9c4f104 100644
--- a/configure.ac
+++ b/configure.ac
@@ -144,7 +144,6 @@
# Checks for library functions.
AC_FUNC_STRTOD
-AC_CHECK_FUNCS([memset], , AC_MSG_ERROR(memset not found in libc))
AC_CHECK_FUNCS([pow], , AC_CHECK_LIB(m, pow, , AC_MSG_ERROR(cannot find pow)) )
# Some later POSIX 1003.1 functions are required for test programs, failure here
