+rm -f compat/have_getline
+
+printf "Checking for strcasestr... "
+if ${CC} -o compat/have_strcasestr "$srcdir"/compat/have_strcasestr.c > /dev/null 2>&1
+then
+ printf "Yes.\n"
+ have_strcasestr=1
+else
+ printf "No (will use our own instead).\n"
+ have_strcasestr=0
+fi
+rm -f compat/have_strcasestr
+
+printf "Checking for strsep... "
+if ${CC} -o compat/have_strsep "$srcdir"/compat/have_strsep.c > /dev/null 2>&1
+then
+ printf "Yes.\n"
+ have_strsep="1"
+else
+ printf "No (will use our own instead).\n"
+ have_strsep="0"
+fi
+rm -f compat/have_strsep
+
+printf "Checking for timegm... "
+if ${CC} -o compat/have_timegm "$srcdir"/compat/have_timegm.c > /dev/null 2>&1
+then
+ printf "Yes.\n"
+ have_timegm="1"
+else
+ printf "No (will use our own instead).\n"
+ have_timegm="0"
+fi
+rm -f compat/have_timegm
+
+printf "Checking for dirent.d_type... "
+if ${CC} -o compat/have_d_type "$srcdir"/compat/have_d_type.c > /dev/null 2>&1
+then
+ printf "Yes.\n"
+ have_d_type="1"
+else
+ printf "No (will use stat instead).\n"
+ have_d_type="0"
+fi
+rm -f compat/have_d_type
+
+printf "Checking for standard version of getpwuid_r... "
+if ${CC} -o compat/check_getpwuid "$srcdir"/compat/check_getpwuid.c > /dev/null 2>&1
+then
+ printf "Yes.\n"
+ std_getpwuid=1
+else
+ printf "No (will define _POSIX_PTHREAD_SEMANTICS to get it).\n"
+ std_getpwuid=0
+fi
+rm -f compat/check_getpwuid
+
+printf "Checking for standard version of asctime_r... "
+if ${CC} -o compat/check_asctime "$srcdir"/compat/check_asctime.c > /dev/null 2>&1
+then
+ printf "Yes.\n"
+ std_asctime=1
+else
+ printf "No (will define _POSIX_PTHREAD_SEMANTICS to get it).\n"
+ std_asctime=0
+fi
+rm -f compat/check_asctime
+
+printf "int main(void){return 0;}\n" > minimal.c
+
+printf "Checking for rpath support... "
+if ${CC} -Wl,--enable-new-dtags -Wl,-rpath,/tmp/ -o minimal minimal.c >/dev/null 2>&1
+then
+ printf "Yes.\n"
+ rpath_ldflags="-Wl,--enable-new-dtags -Wl,-rpath,\$(libdir)"
+else
+ printf "No (nothing to worry about).\n"
+ rpath_ldflags=""
+fi
+
+printf "Checking for -Wl,--as-needed... "
+if ${CC} -Wl,--as-needed -o minimal minimal.c >/dev/null 2>&1
+then
+ printf "Yes.\n"
+ as_needed_ldflags="-Wl,--as-needed"
+else
+ printf "No (nothing to worry about).\n"
+ as_needed_ldflags=""
+fi
+
+WARN_CXXFLAGS=""
+printf "Checking for available C++ compiler warning flags... "
+for flag in -Wall -Wextra -Wwrite-strings; do
+ if ${CC} $flag -o minimal minimal.c > /dev/null 2>&1
+ then
+ WARN_CXXFLAGS="${WARN_CXXFLAGS}${WARN_CXXFLAGS:+ }${flag}"
+ fi
+done
+printf "\n\t${WARN_CXXFLAGS}\n"
+
+WARN_CFLAGS="${WARN_CXXFLAGS}"
+printf "Checking for available C compiler warning flags... "
+for flag in -Wmissing-declarations; do
+ if ${CC} $flag -o minimal minimal.c > /dev/null 2>&1
+ then
+ WARN_CFLAGS="${WARN_CFLAGS}${WARN_CFLAGS:+ }${flag}"
+ fi
+done
+printf "\n\t${WARN_CFLAGS}\n"
+
+rm -f minimal minimal.c