Use 'file' command in more places to determine the library ABI (IRIX, SunOS,

Darwin), removes need to pass in special -archopt flags.
Restore the -dlopen flag afterall.

diff --git a/bin/mklib b/bin/mklib
index 32e4398..ad8419e 100755 (executable)
--- a/bin/mklib
+++ b/bin/mklib
@@ -36,6 +36,7 @@ DEPS=""
 LINK=""
 CPLUSPLUS=0
 STATIC=0
+DLOPEN=0
 INSTALLDIR="."
 ARCH="auto"
 ARCHOPT=""
@@ -64,6 +65,7 @@ do
            echo '                Not observed on all systems at this time.'
            echo '  -cplusplus    link with C++ runtime'
            echo '  -static       make a static library (default is dynamic/shared)'
+           echo '  -dlopen       make a shared library suitable for dynamic loading'
            echo '  -install DIR  put resulting library file(s) in DIR'
            echo '  -arch ARCH    override using `uname` to determine host system'
            echo '  -archopt OPT  specify an extra achitecture-specific option OPT'
@@ -104,6 +106,9 @@ do
        '-static')
            STATIC=1
            ;;
+       '-dlopen')
+           DLOPEN=1
+           ;;
        '-install')
            shift 1;
            INSTALLDIR=$1
@@ -316,14 +321,18 @@ case $ARCH in
                fi
            fi
 
-            ARCHOPTS=""
-           if [ "$ARCHOPT" = "SUNV9" ] ; then
-                ARCHOPTS="-xarch=v9"
-            fi
+           # Check if objects are SPARC v9
+           # file says: ELF 64-bit MSB relocatable SPARCV9 Version 1
+           set ${OBJECTS}
+           SPARCV9=`file $1 | grep SPARCV9`
+           if [ "${SPARCV9}" ] ; then
+               OPTS="${OPTS} -xarch=v9"
+           fi
+
            # for debug:
-           #echo "mklib: linker is" ${LINK} ${OPTS} ${ARCHOPTS}
+           #echo "mklib: linker is" ${LINK} ${OPTS}
            rm -f ${LIBNAME}.${MAJOR} ${LIBNAME}
-           ${LINK} ${OPTS} ${ARCHOPTS} -o ${LIBNAME}.${MAJOR} ${OBJECTS} ${DEPS}
+           ${LINK} ${OPTS} -o ${LIBNAME}.${MAJOR} ${OBJECTS} ${DEPS}
            ln -s ${LIBNAME}.${MAJOR} ${LIBNAME}
            FINAL_LIBS="${LIBNAME}.${MAJOR} ${LIBNAME}"
        fi
@@ -391,26 +400,33 @@ case $ARCH in
            FINAL_LIBS=${LIBNAME}
        else
            LIBNAME="lib${LIBNAME}.so"  # prefix with "lib", suffix with ".so"
-           # XXX we should run 'file' on the first object file to determine
-           # if it's o32, n32 or 64 format, as we do for Linux above.
-           if [ $ARCHOPT = "64" ] ; then
-               # 64-bit ABI
-               OPTS="-64 -shared -all"
-               echo "mklib: Making IRIX 64-bit shared library: " ${LIBNAME}
-           elif [ $ARCHOPT = "o32" ] ; then
-               # old 32-bit ABI
+
+           # examine first object to determine ABI
+           set ${OBJECTS}
+           ABI_O32=`file $1 | grep 'ELF 32-bit'`
+           ABI_N32=`file $1 | grep 'ELF N32-bit'`
+           ABI_N64=`file $1 | grep 'ELF 64-bit'`
+           if [ ${ABI_O32} ] ; then
                OPTS="-32 -shared -all"
-               echo "mklib: Making IRIX o32-bit shared library: " ${LIBNAME}
-           else
-               # new 32-bit ABI
+               ABI="o32-bit"
+           elif [ ${ABI_N32} ] ; then
                OPTS="-n32 -shared -all"
-               echo "mklib: Making IRIX n32-bit shared library: " ${LIBNAME}
+               ABI="n32-bit"
+           elif [ ${ABI_N64} ] ; then
+               OPTS="-64 -shared -all"
+               ABI="64-bit"
+           else
+               echo "Error: Unexpected IRIX ABI!"
+               exit 1
            fi
+
            if [ $CPLUSPLUS = 1 ] ; then
                LINK="CC"
            else
                LINK="ld"
            fi
+
+           echo "mklib: Making IRIX " ${ABI} " shared library: " ${LIBNAME}
            ${LINK} ${OPTS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
            FINAL_LIBS=${LIBNAME}
        fi
@@ -464,7 +480,6 @@ case $ARCH in
            else
                OFILE=shr.o  #Want to be consistent with the IBM libGL.a
            fi
-           DLOPENLIBNAME="lib${LIBNAME}.so"  # different libs required for dlopen
            LIBNAME="lib${LIBNAME}.a"  # shared objects are still stored in the .a libraries
            if [ $ARCH = "AIX64" ] ; then
                OPTS="-bE:${EXPFILE} -bM:SRE -bnoentry -q64"
@@ -491,13 +506,14 @@ case $ARCH in
 
             # On AIX a shared library is linked differently when
             # you want to dlopen the file
-           cc -G ${OPTS} -o ${DLOPENLIBNAME} ${OBJECTS} ${DEPS}
-
-            # Traditional link-time binding compatible with system lib
-           cc ${OPTS} -o ${OFILE} ${OBJECTS} ${DEPS}
-           ar ${X64} -r ${LIBNAME} ${OFILE}
+           if [ $DLOPEN = "1" ] ; then
+               cc -G ${OPTS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
+           else
+               cc ${OPTS} -o ${OFILE} ${OBJECTS} ${DEPS}
+               ar ${X64} -r ${LIBNAME} ${OFILE}
+           fi
 
-            FINAL_LIBS="${LIBNAME} ${DLOPENLIBNAME}"
+            FINAL_LIBS="${LIBNAME}"
         fi
         ;;
 
@@ -543,32 +559,41 @@ case $ARCH in
             FINAL_LIBS=${LIBNAME}
         else
             # On Darwin a .bundle is used for a library that you want to dlopen
-            FLAGS="${ARCHOPT} -bundle -multiply_defined suppress"
-            BLINKNAME="lib${LIBNAME}.bundle"
-            BLIBNAME="lib${LIBNAME}.${MAJOR}.bundle"
-            echo "mklib: Making Darwin bundle: " ${BLIBNAME}
-           if [ $CPLUSPLUS = 1 ] ; then
-               LINK="g++"
-           else
-               LINK="cc"
+            if [ $DLOPEN = "1" ] ; then
+                LIBSUFFIX="bundle"
+                OPTS="${ARCHOPT} -bundle -multiply_defined suppress"
+            else
+               LIBSUFFIX="dylib"
+                OPTS="${ARCHOPT} -dynamiclib -multiply_defined suppress -current_version ${MAJOR}.${MINOR}.0 -compatibility_version ${MAJOR}.${MINOR}.0 -install_name lib${LIBNAME}.${MAJOR}.${LIBSUFFIX}"
+            fi
+            LINKNAME="lib${LIBNAME}.${LIBSUFFIX}"
+            LIBNAME="lib${LIBNAME}.${MAJOR}.${LIBSUFFIX}"
+
+           # examine first object to determine ABI
+           set ${OBJECTS}
+           ABI_PPC=`file $1 | grep 'object ppct'`
+           ABI_I386=`file $1 | grep 'object i386'`
+           if [ ${ABI_PPC} ] ; then
+               OPTS="${OPTS} -arch ppc"
+           fi
+           if [ ${ABI_I386} ] ; then
+               OPTS="${OPTS} -arch i386"
            fi
-            ${LINK} ${FLAGS} -o ${BLIBNAME} ${OBJECTS} ${DEPS}
-            ln -s ${BLIBNAME} ${BLINKNAME}
 
-            # A .dylib is for link-time binding
-            FLAGS="${ARCHOPT} -dynamiclib -multiply_defined suppress -current_version ${MAJOR}.${MINOR}.0 -compatibility_version ${MAJOR}.${MINOR}.0 -install_name lib${LIBNAME}.${MAJOR}.${LIBSUFFIX}"
-            LINKNAME="lib${LIBNAME}.dylib"
-            LIBNAME="lib${LIBNAME}.${MAJOR}.dylib"
-            echo "mklib: Making Darwin shared library: " ${LIBNAME}
+           # XXX can we always add -isysroot /Developer/SDKs/MacOSX10.4u.sdk
+           # to OPTS here?
+
+           # determine linker
            if [ $CPLUSPLUS = 1 ] ; then
                LINK="g++"
            else
                LINK="cc"
            fi
-            ${LINK} ${FLAGS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
-            ln -s ${LIBNAME} ${LINKNAME}
 
-            FINAL_LIBS="${LIBNAME} ${LINKNAME} ${BLIBNAME} ${BLINKNAME}"
+            echo "mklib: Making Darwin shared library: " ${LIBNAME}
+            ${LINK} ${OPTS} -o ${LIBNAME} ${OBJECTS} ${DEPS}
+            ln -s ${LIBNAME} ${LINKNAME}
+            FINAL_LIBS="${LIBNAME} ${LINKNAME}"
         fi
         ;;