configure.ac: revert bad nghttp2 library detection improvements

This reverts commit b4b34db65f9f8, 673753344c5f and 29c7cf79e8b.

The logic is now back to assuming that the nghttp2 lib is called nghttp2 and
nothing else.

Reported-by: Rui Pinheiro
Reported-by: Alex Crichton
Fixes #7514
Closes #7515

diff --git a/configure.ac b/configure.ac
index c92ab9e22fa86c215b545561c37da4e19c15bca8..3d8c0d1d35d78247a78be0e7e0d62fbbab865968 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -2541,11 +2541,10 @@ if test X"$want_h2" != Xno; then
     LDFLAGS="$LDFLAGS $LD_H2"
     CPPFLAGS="$CPPFLAGS $CPP_H2"
     LIBS="$LIB_H2 $LIBS"
-    LIB_H2_NAME=`echo $LIB_H2 | $SED -ne 's/.*-l *\(nghttp2[^ ]*\).*/\1/p'`
 
     # use nghttp2_session_set_local_window_size to require nghttp2
     # >= 1.12.0
-    AC_CHECK_LIB($LIB_H2_NAME, nghttp2_session_set_local_window_size,
+    AC_CHECK_LIB(nghttp2, nghttp2_session_set_local_window_size,
       [
        AC_CHECK_HEADERS(nghttp2/nghttp2.h,
           curl_h2_msg="enabled (nghttp2)"