stop ./configure at once on library failure
diff --git a/auto/lib/conf b/auto/lib/conf
index 7da80e7..f52c904 100644
--- a/auto/lib/conf
+++ b/auto/lib/conf
@@ -4,8 +4,22 @@
if [ $USE_PCRE = YES -o $PCRE != NONE ]; then
. auto/lib/pcre/conf
+
+else
+ if [ $USE_PCRE = DISABLED -a $HTTP_REWRITE = YES ]; then
+
+cat << END
+
+$0: error: the HTTP rewrite module requires the PCRE library.
+You can either disable the module by using --without-http_rewrite_module
+option or you have to enable the PCRE support.
+
+END
+ exit 1
+ fi
fi
+
if [ $USE_OPENSSL = YES ]; then
. auto/lib/openssl/conf
fi
diff --git a/auto/lib/google-perftools/conf b/auto/lib/google-perftools/conf
index a8987c9..67df9f8 100644
--- a/auto/lib/google-perftools/conf
+++ b/auto/lib/google-perftools/conf
@@ -30,4 +30,15 @@
if [ $ngx_found = yes ]; then
CORE_LIBS="$CORE_LIBS $ngx_feature_libs"
+
+else
+
+cat << END
+
+$0: error: the Google perftool module requires the Google perftools
+library. You can either do not enable the module or install the library.
+
+END
+
+ exit 1
fi
diff --git a/auto/lib/md5/conf b/auto/lib/md5/conf
index 75dd130..d4ef007 100644
--- a/auto/lib/md5/conf
+++ b/auto/lib/md5/conf
@@ -94,6 +94,18 @@
CORE_LIBS="$CORE_LIBS $ngx_feature_libs"
MD5=YES
MD5_LIB=$ngx_md5_lib
+ else
+
+cat << END
+
+$0: error: the HTTP cache module requires md5 functions
+from OpenSSL library. You can either disable the module by using
+--without-http_cache option, or install the OpenSSL library into the system,
+or build the OpenSSL library statically from the source with nginx by using
+--with-openssl=<path> option.
+
+END
+ exit 1
fi
fi
diff --git a/auto/lib/openssl/conf b/auto/lib/openssl/conf
index 8a762a2..731db80 100644
--- a/auto/lib/openssl/conf
+++ b/auto/lib/openssl/conf
@@ -66,6 +66,17 @@
have=NGX_SSL . auto/have
CORE_LIBS="$CORE_LIBS $ngx_feature_libs $NGX_LIBDL"
OPENSSL=YES
+ else
+
+cat << END
+
+$0: error: SSL modules require the OpenSSL library.
+You can either do not enable the modules, or install the OpenSSL library
+into the system, or build the OpenSSL library statically from the source
+with nginx by using --with-openssl=<path> option.
+
+END
+ exit 1
fi
;;
diff --git a/auto/lib/pcre/conf b/auto/lib/pcre/conf
index 3a26b85..71c6fc5 100644
--- a/auto/lib/pcre/conf
+++ b/auto/lib/pcre/conf
@@ -161,6 +161,18 @@
CORE_INCS="$CORE_INCS $ngx_feature_path"
CORE_LIBS="$CORE_LIBS $ngx_feature_libs"
PCRE=YES
+ else
+
+cat << END
+
+$0: error: the HTTP rewrite module requires the PCRE library.
+You can either disable the module by using --without-http_rewrite_module
+option, or install the PCRE library into the system, or build the PCRE library
+statically from the source with nginx by using --with-pcre=<path> option.
+
+END
+ exit 1
+
fi
fi
diff --git a/auto/lib/zlib/conf b/auto/lib/zlib/conf
index f033354..e44aa34 100644
--- a/auto/lib/zlib/conf
+++ b/auto/lib/zlib/conf
@@ -57,6 +57,17 @@
CORE_LIBS="$CORE_LIBS $ngx_feature_libs"
ZLIB=YES
ngx_found=no
+ else
+
+cat << END
+
+$0: error: the HTTP gzip module requires the zlib library.
+You can either disable the module by using --without-http_gzip_module
+option, or install the zlib library into the system, or build the zlib library
+statically from the source with nginx by using --with-zlib=<path> option.
+
+END
+ exit 1
fi
fi
diff --git a/auto/summary b/auto/summary
index bcb8bcd..b0f6b19 100644
--- a/auto/summary
+++ b/auto/summary
@@ -74,65 +74,6 @@
echo
-if [ $HTTP_REWRITE = YES ]; then
- if [ $USE_PCRE = DISABLED ]; then
-
-cat << END
-$0: error: the HTTP rewrite module requires the PCRE library.
-You can either disable the module by using --without-http_rewrite_module
-option or you have to enable the PCRE support.
-
-END
- exit 1
- fi
-
- if [ $PCRE = NONE -o $PCRE = NO ]; then
-
-cat << END
-$0: error: the HTTP rewrite module requires the PCRE library.
-You can either disable the module by using --without-http_rewrite_module
-option, or install the PCRE library into the system, or build the PCRE library
-statically from the source with nginx by using --with-pcre=<path> option.
-
-END
-
- exit 1
- fi
-fi
-
-
-if [ $HTTP_GZIP = YES ]; then
- if [ $ZLIB = NONE -o $ZLIB = NO ]; then
-
-cat << END
-$0: error: the HTTP gzip module requires the zlib library.
-You can either disable the module by using --without-http_gzip_module
-option, or install the zlib library into the system, or build the zlib library
-statically from the source with nginx by using --with-zlib=<path> option.
-
-END
-
- exit 1
- fi
-fi
-
-
-if [ $HTTP_SSL = YES ]; then
- if [ $OPENSSL = NONE -o $OPENSSL = NO ]; then
-
-cat << END
-$0: error: the HTTP SSL module requires the OpenSSL library.
-You can either do not enable the module, or install the OpenSSL library
-into the system, or build the OpenSSL library statically from the source
-with nginx by using --with-openssl=<path> option.
-
-END
-
- exit 1
- fi
-fi
-
-
cat << END
nginx path prefix: "$NGX_PREFIX"
nginx binary file: "$NGX_SBIN_PATH"
