The jdk makefiles need some adjustments for easy building on OpenSolaris.

1. ALT_DEVTOOLS_PATH needs a default of /usr/bin

2. Use /opt/SunStudioExpress/bin/ as a possible default path to Sun Studio compilers for ALT_COMPILER_PATH

3. ALT_CUPS_HEADERS_PATH=/usr/include should be the default

4. Consider making some of these be default settings instead of sanity checks: LANG=C ; unset JAVA_HOME

5. Consider adding this to control build before building hotspot: PATH="${COMPILER_PATH}:${PATH}"
6. Do not depend on GCC being there.

Building OpenJDK on latest OpenSolaris 2008.11 you get strange gcc errors, it can build, just annoying

gmake ALT_CUPS_HEADERS_PATH=/usr/include sanity ALT_BINARY_PLUGS_PATH=${HOME}/import/openjdk-binary-plugs
/bin/sh: line 1: /NOT-SET/devtools/i586/gnucc/bin/gcc: not found
/bin/sh: line 1: /NOT-SET/devtools/i586/gnucc/bin/gcc: not found
gmake[1]: Entering directory `/export/home/ohair/hgws/jdk7/jdk7-open/jdk/make'
/bin/sh: line 1: /NOT-SET/devtools/i586/gnucc/bin/gcc: not found
gmake[1]: Leaving directory `/export/home/ohair/hgws/jdk7/jdk7-open/jdk/make

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