--- jdk/make/common/shared/Sanity.gmk.orig  2018-07-30 04:34:17.751452000 +0800
+++ jdk/make/common/shared/Sanity.gmk   2018-07-30 04:34:45.787027000 +0800
@@ -106,11 +106,6 @@
     elif [ -f /etc/lsb-release ] ; then \
       $(EGREP) DISTRIB_RELEASE /etc/lsb-release | $(SED) -e 's@.*DISTRIB_RELEASE=\(.*\)@\1@'; \
     fi)
-  ALSA_INCLUDE=/usr/include/alsa/version.h
-  ALSA_LIBRARY=/usr/lib/libasound.so
-  _ALSA_VERSION := $(shell $(EGREP) SND_LIB_VERSION_STR $(ALSA_INCLUDE) | \
-           $(SED) -e 's@.*"\(.*\)".*@\1@' )
-  ALSA_VERSION := $(call GetVersion,$(_ALSA_VERSION))
 endif

 ifeq ($(PLATFORM), macosx)
@@ -1371,35 +1366,6 @@
          "" >> $(WARNING_FILE) ; \
          fi
   endif
-endif
-
-######################################################
-# Check that ALSA headers and libs are installed and
-# that the header has the right version. We only
-# need /usr/include/alsa/version.h and /usr/lib/libasound.so
-######################################################
-
-ifdef REQUIRED_ALSA_VERSION
-  ALSA_CHECK := $(call CheckVersions,$(ALSA_VERSION),$(REQUIRED_ALSA_VERSION))
-endif
-sane-alsa-headers:
-ifdef REQUIRED_ALSA_VERSION
-   @if [ "$(ALSA_CHECK)" != "missing" ] ; then \
-       if [ "$(ALSA_CHECK)" != "same" -a "$(ALSA_CHECK)" != "newer"  ] ; then \
-       $(ECHO) "ERROR: The ALSA version must be $(REQUIRED_ALSA_VERSION) or higher. \n" \
-       "      You have the following ALSA version installed: $${alsa_version} \n" \
-       "      Please reinstall ALSA (drivers and lib). You can download \n" \
-       "      the source distribution from http://www.alsa-project.org \n" \
-       "      or go to http://www.freshrpms.net/docs/alsa/ for precompiled RPM packages. \n" \
-       "" >> $(ERROR_FILE) ; \
-       fi ; \
-   else \
-       $(ECHO) "ERROR: You seem to not have installed ALSA $(REQUIRED_ALSA_VERSION) or higher. \n" \
-       "      Please install ALSA (drivers and lib). You can download the \n" \
-       "      source distribution from http://www.alsa-project.org or go to \n" \
-       "      http://www.freshrpms.net/docs/alsa/ for precompiled RPM packages. \n" \
-       "" >> $(ERROR_FILE) ; \
-   fi
 endif

 # If a sanity file doesn't exist, just make sure it's dir exists