./configure.ac: detect SSL in libcurl using curl-config

The API of libcurl does not mention Curl_ssl_init() and when curl is built with -flto, the Curl_ssl_init symbol is not exported. https://curl.haxx.se/libcurl/using/ suggests calling curl-config --feature | grep SSL to see, if the installed curl has SSL support. Another approach would be calling curl_version_info and checking the returned struct. This patch removes the check for the Curl_ssl_init exported symbol from libcurl and uses curl-config to detect SSL support in libcurl. Signed-off-by: Дилян Палаузов <git-dpa@aegee.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>

Дилян Палаузов committed Jun 28, 2016 at 12:04 UTC 924b7eb1c983c845203a5c2fd80fe499acff6e84
1 file changed +11 -10
configure.ac
+11 -10
@@ -528,16 +528,6 @@ AC_CHECK_LIB([curl], [curl_global_init],
528 [NO_CURL=],
529 [NO_CURL=YesPlease])
530
531 -if test -z "${NO_CURL}" && test -z "${NO_OPENSSL}"; then
532 -
533 -AC_CHECK_LIB([curl], [Curl_ssl_init],
534 -[NEEDS_SSL_WITH_CURL=YesPlease],
535 -[NEEDS_SSL_WITH_CURL=])
536 -
537 -GIT_CONF_SUBST([NEEDS_SSL_WITH_CURL])
538 -
539 -fi
540 -
531 GIT_UNSTASH_FLAGS($CURLDIR)
532
533 GIT_CONF_SUBST([NO_CURL])
@@ -550,6 +540,17 @@ AC_CHECK_PROG([CURL_CONFIG], [curl-config],
540
541 if test $CURL_CONFIG != no; then
542 GIT_CONF_SUBST([CURL_CONFIG])
543 + if test -z "${NO_OPENSSL}"; then
544 + AC_MSG_CHECKING([if Curl supports SSL])
545 + if test $(curl-config --features|grep SSL) = SSL; then
546 + NEEDS_SSL_WITH_CURL=YesPlease
547 + AC_MSG_RESULT([yes])
548 + else
549 + NEEDS_SSL_WITH_CURL=
550 + AC_MSG_RESULT([no])
551 + fi
552 + GIT_CONF_SUBST([NEEDS_SSL_WITH_CURL])
553 + fi
554 fi
555
556 fi