I just updated from http://hg.openjdk.java.net/jdk9/jdk9 and ran into the following build problem on macOS 10.12:
configure: error: Could not find freetype! You might be able to fix this by running 'brew install freetype'.
/Volumes/A/JDK/jdk9/common/autoconf/generated-configure.sh: line 82: 5: Bad file descriptor
configure exiting with result code 1
Note that freetype was already installed using brew.
The following output suggests that configure is only looking in the SDK and not in /usr/local...
+++ FREETYPE_BASE_NAME=freetype
+++ FREETYPE_CFLAGS=
+++ FREETYPE_LIBS=
+++ FREETYPE_BUNDLE_LIB_PATH=
+++ test xtrue = xfalse
+++ BUNDLE_FREETYPE=
+++ test x '!=' x
+++ test x '!=' x
+++ test x '!=' x
+++ test x '!=' x
+++ test x = x
+++ test xmacosx = xwindows
+++ BUNDLE_FREETYPE=no
+++ test x/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk = x
+++ test x '!=' xyes
+++ test xmacosx = xwindows
+++ FREETYPE_BASE_DIR=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr
+++ POTENTIAL_FREETYPE_INCLUDE_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include
+++ POTENTIAL_FREETYPE_LIB_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/lib
+++ METHOD='well-known location'
+++ FOUND_FREETYPE=yes
+++ test -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include/ft2build.h
+++ POTENTIAL_FREETYPE_INCLUDE_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include/freetype2
+++ test -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include/freetype2/ft2build.h
+++ FOUND_FREETYPE=no
+++ test xno = xyes
+++ test xno = xyes
+++ test xno '!=' xyes
+++ FREETYPE_BASE_DIR=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/X11
+++ POTENTIAL_FREETYPE_INCLUDE_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/X11/include
+++ POTENTIAL_FREETYPE_LIB_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/X11/lib
+++ METHOD='well-known location'
+++ FOUND_FREETYPE=yes
+++ test -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/X11/include/ft2build.h
+++ POTENTIAL_FREETYPE_INCLUDE_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/X11/include/freetype2
+++ test -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/X11/include/freetype2/ft2build.h
+++ FOUND_FREETYPE=no
+++ test xno = xyes
+++ test xno = xyes
+++ test xno '!=' xyes
+++ FREETYPE_BASE_DIR=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/local
+++ POTENTIAL_FREETYPE_INCLUDE_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/local/include
+++ POTENTIAL_FREETYPE_LIB_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/local/lib
+++ METHOD='well-known location'
+++ FOUND_FREETYPE=yes
+++ test -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/local/include/ft2build.h
+++ POTENTIAL_FREETYPE_INCLUDE_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/local/include/freetype2
+++ test -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/local/include/freetype2/ft2build.h
+++ FOUND_FREETYPE=no
+++ test xno = xyes
+++ test xno = xyes
+++ test xmacosx = xmacosx
+++ test xno '!=' xyes
+++ FREETYPE_BASE_DIR=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/opt/X11
+++ POTENTIAL_FREETYPE_INCLUDE_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/opt/X11/include
+++ POTENTIAL_FREETYPE_LIB_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/opt/X11/lib
+++ METHOD='well-known location'
+++ FOUND_FREETYPE=yes
+++ test -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/opt/X11/include/ft2build.h
+++ POTENTIAL_FREETYPE_INCLUDE_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/opt/X11/include/freetype2
+++ test -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/opt/X11/include/freetype2/ft2build.h
+++ FOUND_FREETYPE=no
+++ test xno = xyes
+++ test xno = xyes
+++ test xno '!=' xyes
+++ FREETYPE_BASE_DIR=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr
+++ test x64 = x64
+++ POTENTIAL_FREETYPE_INCLUDE_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include
+++ POTENTIAL_FREETYPE_LIB_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/lib/x86_64-linux-gnu
+++ METHOD='well-known location'
+++ FOUND_FREETYPE=yes
+++ test -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include/ft2build.h
+++ POTENTIAL_FREETYPE_INCLUDE_PATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include/freetype2
+++ test -s /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include/freetype2/ft2build.h
+++ FOUND_FREETYPE=no
+++ test xno = xyes
+++ test xno = xyes
+++ test xno '!=' xyes
+++ MISSING_DEPENDENCY=freetype
+++ test xmacosx = xwindows.cygwin
+++ test xmacosx = xwindows.msys
+++ PKGHANDLER_COMMAND=
+++ case $PKGHANDLER in
+++ brew_help freetype
+++ case $1 in
+++ PKGHANDLER_COMMAND='brew install freetype'
+++ test 'xbrew install freetype' '!=' x
+++ HELP_MSG='You might be able to fix this by running '\''brew install freetype'\''.'
+++ as_fn_error 0 'Could not find freetype! You might be able to fix this by running '\''brew install freetype'\''. ' 62636 5
+++ as_status=0
+++ test 0 -eq 0
+++ as_status=1
+++ test 5
+++ as_lineno=62636
+++ as_lineno_stack=as_lineno_stack=
+++ printf '%s\n' 'configure:62636: error: Could not find freetype! You might be able to fix this by running '\''brew install freetype'\''. '
+++ printf '%s\n' 'configure: error: Could not find freetype! You might be able to fix this by running '\''brew install freetype'\''. '
configure: error: Could not find freetype! You might be able to fix this by running 'brew install freetype'.
+++ as_fn_exit 1
+++ set +e
+++ as_fn_set_status 1
+++ return 1
+++ exit 1
+ exit_status=1
/Volumes/A/JDK/jdk9/common/autoconf/generated-configure.sh: line 82: 5: Bad file descriptor
+ rm -f core '*.core' 'core.conftest.*'
+ rm -f -r 'conftest*' confdefs.h 'conf29603*'
+ exit 1
++ echo 1
++ exec
+++ cat /var/folders/kr/m7872s7x5t3f8twyftzrj0zm0000gn/T/jdk-build-configure.tmp.XXXXXX.YV3rVGeJ/rc
++ conf_result_code=1
++ test 1 -eq 0
++ echo configure exiting with result code 1
configure exiting with result code 1
++ exit 1
+ rm -rf /var/folders/kr/m7872s7x5t3f8twyftzrj0zm0000gn/T/jdk-build-configure.tmp.XXXXXX.YV3rVGeJ