diff options
Diffstat (limited to 'gcc/configure')
| -rwxr-xr-x | gcc/configure | 87 |
1 files changed, 85 insertions, 2 deletions
diff --git a/gcc/configure b/gcc/configure index 749dd2e6078e..0feb91111c09 100755 --- a/gcc/configure +++ b/gcc/configure @@ -784,6 +784,7 @@ loose_warn EGREP GREP CPP +PICFLAG_FOR_TARGET OUTPUT_OPTION NO_MINUS_C_MINUS_O GNATMAKE @@ -4873,6 +4874,88 @@ case "$CC" in esac +# Determine PICFLAG for target gnatlib. + + + + +case "${target}" in + # PIC is the default on some targets or must not be used. + *-*-darwin*) + # PIC is the default on this platform + # Common symbols not allowed in MH_DYLIB files + PICFLAG_FOR_TARGET=-fno-common + ;; + alpha*-dec-osf5*) + # PIC is the default. + ;; + hppa*64*-*-hpux*) + # PIC is the default for 64-bit PA HP-UX. + ;; + i[34567]86-*-cygwin* | i[34567]86-*-mingw* | x86_64-*-mingw*) + ;; + i[34567]86-*-interix3*) + # Interix 3.x gcc -fpic/-fPIC options generate broken code. + # Instead, we relocate shared libraries at runtime. + ;; + i[34567]86-*-nto-qnx*) + # QNX uses GNU C++, but need to define -shared option too, otherwise + # it will coredump. + PICFLAG_FOR_TARGET='-fPIC -shared' + ;; + i[34567]86-pc-msdosdjgpp*) + # DJGPP does not support shared libraries at all. + ;; + ia64*-*-hpux*) + # On IA64 HP-UX, PIC is the default but the pic flag + # sets the default TLS model and affects inlining. + PICFLAG_FOR_TARGET=-fPIC + ;; + mips-sgi-irix6*) + # PIC is the default. + ;; + rs6000-ibm-aix* | powerpc-ibm-aix*) + # All AIX code is PIC. + ;; + + # Some targets support both -fPIC and -fpic, but prefer the latter. + # FIXME: Why? + i[34567]86-*-* | x86_64-*-*) + PICFLAG_FOR_TARGET=-fpic + ;; + m68k-*-*) + PICFLAG_FOR_TARGET=-fpic + ;; + s390*-*-*) + PICFLAG_FOR_TARGET=-fpic + ;; + # FIXME: Override -fPIC default in libgcc only? + sh-*-linux* | sh[2346lbe]*-*-linux*) + PICFLAG_FOR_TARGET=-fpic + ;; + # FIXME: Simplify to sh*-*-netbsd*? + sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \ + sh64-*-netbsd* | sh64l*-*-netbsd*) + PICFLAG_FOR_TARGET=-fpic + ;; + # Default to -fPIC unless specified otherwise. + *) + PICFLAG_FOR_TARGET=-fPIC + ;; +esac + +# If the user explicitly uses -fpic/-fPIC, keep that. +case "${CFLAGS_FOR_TARGET}" in + *-fpic*) + PICFLAG_FOR_TARGET=-fpic + ;; + *-fPIC*) + PICFLAG_FOR_TARGET=-fPIC + ;; +esac + + + # ------------------------- # Check C compiler features # ------------------------- @@ -17830,7 +17913,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 17833 "configure" +#line 17916 "configure" #include "confdefs.h" #if HAVE_DLFCN_H @@ -17936,7 +18019,7 @@ else lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2 lt_status=$lt_dlunknown cat > conftest.$ac_ext <<_LT_EOF -#line 17939 "configure" +#line 18022 "configure" #include "confdefs.h" #if HAVE_DLFCN_H |