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jni support: Changes from bitcoin-core/secp256k1#248
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,140 @@ | ||
| # =========================================================================== | ||
| # http://www.gnu.org/software/autoconf-archive/ax_jni_include_dir.html | ||
| # =========================================================================== | ||
| # | ||
| # SYNOPSIS | ||
| # | ||
| # AX_JNI_INCLUDE_DIR | ||
| # | ||
| # DESCRIPTION | ||
| # | ||
| # AX_JNI_INCLUDE_DIR finds include directories needed for compiling | ||
| # programs using the JNI interface. | ||
| # | ||
| # JNI include directories are usually in the Java distribution. This is | ||
| # deduced from the value of $JAVA_HOME, $JAVAC, or the path to "javac", in | ||
| # that order. When this macro completes, a list of directories is left in | ||
| # the variable JNI_INCLUDE_DIRS. | ||
| # | ||
| # Example usage follows: | ||
| # | ||
| # AX_JNI_INCLUDE_DIR | ||
| # | ||
| # for JNI_INCLUDE_DIR in $JNI_INCLUDE_DIRS | ||
| # do | ||
| # CPPFLAGS="$CPPFLAGS -I$JNI_INCLUDE_DIR" | ||
| # done | ||
| # | ||
| # If you want to force a specific compiler: | ||
| # | ||
| # - at the configure.in level, set JAVAC=yourcompiler before calling | ||
| # AX_JNI_INCLUDE_DIR | ||
| # | ||
| # - at the configure level, setenv JAVAC | ||
| # | ||
| # Note: This macro can work with the autoconf M4 macros for Java programs. | ||
| # This particular macro is not part of the original set of macros. | ||
| # | ||
| # LICENSE | ||
| # | ||
| # Copyright (c) 2008 Don Anderson <[email protected]> | ||
| # | ||
| # Copying and distribution of this file, with or without modification, are | ||
| # permitted in any medium without royalty provided the copyright notice | ||
| # and this notice are preserved. This file is offered as-is, without any | ||
| # warranty. | ||
|
|
||
| #serial 10 | ||
|
|
||
| AU_ALIAS([AC_JNI_INCLUDE_DIR], [AX_JNI_INCLUDE_DIR]) | ||
| AC_DEFUN([AX_JNI_INCLUDE_DIR],[ | ||
| JNI_INCLUDE_DIRS="" | ||
| if test "x$JAVA_HOME" != x; then | ||
| _JTOPDIR="$JAVA_HOME" | ||
| else | ||
| if test "x$JAVAC" = x; then | ||
| JAVAC=javac | ||
| fi | ||
| AC_PATH_PROG([_ACJNI_JAVAC], [$JAVAC], [no]) | ||
| if test "x$_ACJNI_JAVAC" = xno; then | ||
| AC_MSG_WARN([cannot find JDK; try setting \$JAVAC or \$JAVA_HOME]) | ||
| fi | ||
| _ACJNI_FOLLOW_SYMLINKS("$_ACJNI_JAVAC") | ||
| _JTOPDIR=`echo "$_ACJNI_FOLLOWED" | sed -e 's://*:/:g' -e 's:/[[^/]]*$::'` | ||
| fi | ||
| case "$host_os" in | ||
| darwin*) _JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'` | ||
| _JINC="$_JTOPDIR/Headers";; | ||
| *) _JINC="$_JTOPDIR/include";; | ||
| esac | ||
| _AS_ECHO_LOG([_JTOPDIR=$_JTOPDIR]) | ||
| _AS_ECHO_LOG([_JINC=$_JINC]) | ||
| # On Mac OS X 10.6.4, jni.h is a symlink: | ||
| # /System/Library/Frameworks/JavaVM.framework/Versions/Current/Headers/jni.h | ||
| # -> ../../CurrentJDK/Headers/jni.h. | ||
| AC_CACHE_CHECK(jni headers, ac_cv_jni_header_path, | ||
| [ | ||
| if test -f "$_JINC/jni.h"; then | ||
| ac_cv_jni_header_path="$_JINC" | ||
| JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $ac_cv_jni_header_path" | ||
| else | ||
| _JTOPDIR=`echo "$_JTOPDIR" | sed -e 's:/[[^/]]*$::'` | ||
| if test -f "$_JTOPDIR/include/jni.h"; then | ||
| ac_cv_jni_header_path="$_JTOPDIR/include" | ||
| JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $ac_cv_jni_header_path" | ||
| else | ||
| ac_cv_jni_header_path=none | ||
| fi | ||
| fi | ||
| ]) | ||
| # get the likely subdirectories for system specific java includes | ||
| case "$host_os" in | ||
| bsdi*) _JNI_INC_SUBDIRS="bsdos";; | ||
| darwin*) _JNI_INC_SUBDIRS="darwin";; | ||
| freebsd*) _JNI_INC_SUBDIRS="freebsd";; | ||
| linux*) _JNI_INC_SUBDIRS="linux genunix";; | ||
| osf*) _JNI_INC_SUBDIRS="alpha";; | ||
| solaris*) _JNI_INC_SUBDIRS="solaris";; | ||
| mingw*) _JNI_INC_SUBDIRS="win32";; | ||
| cygwin*) _JNI_INC_SUBDIRS="win32";; | ||
| *) _JNI_INC_SUBDIRS="genunix";; | ||
| esac | ||
| if test "x$ac_cv_jni_header_path" != "xnone"; then | ||
| # add any subdirectories that are present | ||
| for JINCSUBDIR in $_JNI_INC_SUBDIRS | ||
| do | ||
| if test -d "$_JTOPDIR/include/$JINCSUBDIR"; then | ||
| JNI_INCLUDE_DIRS="$JNI_INCLUDE_DIRS $_JTOPDIR/include/$JINCSUBDIR" | ||
| fi | ||
| done | ||
| fi | ||
| ]) | ||
|
|
||
| # _ACJNI_FOLLOW_SYMLINKS <path> | ||
| # Follows symbolic links on <path>, | ||
| # finally setting variable _ACJNI_FOLLOWED | ||
| # ---------------------------------------- | ||
| AC_DEFUN([_ACJNI_FOLLOW_SYMLINKS],[ | ||
| # find the include directory relative to the javac executable | ||
| _cur="$1" | ||
| while ls -ld "$_cur" 2>/dev/null | grep " -> " >/dev/null; do | ||
| AC_MSG_CHECKING([symlink for $_cur]) | ||
| _slink=`ls -ld "$_cur" | sed 's/.* -> //'` | ||
| case "$_slink" in | ||
| /*) _cur="$_slink";; | ||
| # 'X' avoids triggering unwanted echo options. | ||
| *) _cur=`echo "X$_cur" | sed -e 's/^X//' -e 's:[[^/]]*$::'`"$_slink";; | ||
| esac | ||
| AC_MSG_RESULT([$_cur]) | ||
| done | ||
| _ACJNI_FOLLOWED="$_cur" | ||
| ])# _ACJNI |
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