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Fix ./configure Java version detection

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Use detected POSIX-compliant $SED instead of system sed (which is BSD
sed on Mac OS-X).
This commit is contained in:
Andrew Bettison 2017-10-05 15:43:24 +10:30
parent fddd7b6640
commit 2443811dad
1 changed files with 2 additions and 1 deletions
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3
m4/ax_prog_javac_version.m4
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@ -43,12 +43,13 @@
AU_ALIAS([AC_PROG_JAVAC_VERSION], [AX_PROG_JAVAC_VERSION])
AC_DEFUN([AX_PROG_JAVAC_VERSION],[
AC_REQUIRE([AC_PROG_SED])
AC_PROG_SED
AC_CACHE_CHECK([Java compiler version],
ax_cv_prog_javac_version,
[ dnl
dnl Many javac print their version number on standard output
if AC_TRY_COMMAND([$JAVAC -version >java_version 2>&1]); then
ax_cv_prog_javac_version=`sed -n 's/^javac //p' java_version`
ax_cv_prog_javac_version=`$SED -n 's/^javac //p' java_version`
else
AC_MSG_ERROR([The Java compiler $JAVAC failed (see config.log)])
ax_cv_prog_javac_version=""