Something

configure:12662: checking for java
configure:12680: found /usr/bin/java
configure:12692: result: /usr/bin/java
configure:12722: checking for javac
configure:12740: found /usr/bin/javac
configure:12752: result: /usr/bin/javac
configure:12864: checking if Java2 SDK is usable
configure:12972: gcc -o conftest        conftest.c   -lnsl  >&5
conftest.c:31:22: error: jni.h: No such file or directory
conftest.c:32: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
configure:12978: $? = 1
configure: failed program was:
| /* confdefs.h.  */
| #define PACKAGE_NAME "crystalspace"
| #define PACKAGE_TARNAME "crystalspace"
| #define PACKAGE_VERSION "1.0.2"
| #define PACKAGE_STRING "crystalspace 1.0.2"
| #define PACKAGE_BUGREPORT "crystal-main@lists.sourceforge.net"
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_CMATH 1
| #define HAVE_MATH_H 1
| #define HAVE_LIBNSL 1
| #define CS_PLATFORM_UNIX
| /* end confdefs.h.  */
| #if defined(__GNUC__)
| 	    typedef long long __int64; /* For GCC on Windows */
| 	    #endif
| 	    /* Fix for 'jlong' on x86_64. */
| 	    #if defined(__x86_64)
| 	    #ifdef _LP64 /* 64-bit Solaris */
| 	    #undef _LP64
| 	    #endif
| 	    #endif
| 	    #include <jni.h>
| 	    JNIEXPORT void JNICALL f(JNIEnv* env, jobject obj);
| int
| main ()
| {
| 
|   ;
|   return 0;
| }
configure:12972: gcc -o conftest -I/usr/include -I/usr/include/linux       conftest.c   -lnsl  >&5
conftest.c:31:22: error: jni.h: No such file or directory
conftest.c:32: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'void'
configure:12978: $? = 1
configure: failed program was:
| /* confdefs.h.  */
| #define PACKAGE_NAME "crystalspace"
| #define PACKAGE_TARNAME "crystalspace"
| #define PACKAGE_VERSION "1.0.2"
| #define PACKAGE_STRING "crystalspace 1.0.2"
| #define PACKAGE_BUGREPORT "crystal-main@lists.sourceforge.net"
| #define STDC_HEADERS 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_MEMORY_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_UNISTD_H 1
| #define HAVE_CMATH 1
| #define HAVE_MATH_H 1
| #define HAVE_LIBNSL 1
| #define CS_PLATFORM_UNIX
| /* end confdefs.h.  */
| #if defined(__GNUC__)
| 	    typedef long long __int64; /* For GCC on Windows */
| 	    #endif
| 	    /* Fix for 'jlong' on x86_64. */
| 	    #if defined(__x86_64)
| 	    #ifdef _LP64 /* 64-bit Solaris */
| 	    #undef _LP64
| 	    #endif
| 	    #endif
| 	    #include <jni.h>
| 	    JNIEXPORT void JNICALL f(JNIEnv* env, jobject obj);
| int
| main ()
| {
| 
|   ;
|   return 0;
| }
configure:13024: result: no