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support configuring cross compiling with CROSS_COMPILE prefix variable

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This commit is contained in:
Rich Felker 2012-08-14 22:50:16 -04:00
parent b99836f3ad
commit 94e920d0cd
1 changed files with 6 additions and 3 deletions
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9
configure vendored
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@ -33,6 +33,7 @@ Optional features:
Some influential environment variables: Some influential environment variables:
CC C compiler command [detected] CC C compiler command [detected]
CFLAGS C compiler flags [-Os -pipe ...] CFLAGS C compiler flags [-Os -pipe ...]
CROSS_COMPILE prefix for cross compiler and tools [none]
Use these variables to override the choices made by configure. Use these variables to override the choices made by configure.
@ -126,6 +127,7 @@ CC=*) CC=${arg#*=} ;;
CFLAGS=*) CFLAGS=${arg#*=} ;; CFLAGS=*) CFLAGS=${arg#*=} ;;
CPPFLAGS=*) CPPFLAGS=${arg#*=} ;; CPPFLAGS=*) CPPFLAGS=${arg#*=} ;;
LDFLAGS=*) LDFLAGS=${arg#*=} ;; LDFLAGS=*) LDFLAGS=${arg#*=} ;;
CROSS_COMPILE=*) CROSS_COMPILE=${arg#*=} ;;
*=*) ;; *=*) ;;
*) target=$arg ;; *) target=$arg ;;
esac esac
@ -155,9 +157,9 @@ trap 'rm "$tmpc"' EXIT INT QUIT TERM HUP
# Find a C compiler to use # Find a C compiler to use
# #
printf "checking for C compiler... " printf "checking for C compiler... "
trycc gcc trycc ${CROSS_COMPILE}gcc
trycc c99 trycc ${CROSS_COMPILE}c99
trycc cc trycc ${CROSS_COMPILE}cc
printf "%s\n" "$CC" printf "%s\n" "$CC"
test -n "$CC" || { echo "$0: cannot find a C compiler" ; exit 1 ; } test -n "$CC" || { echo "$0: cannot find a C compiler" ; exit 1 ; }
@ -297,6 +299,7 @@ CFLAGS= $CFLAGS_AUTO $CFLAGS
CFLAGS_C99FSE = $CFLAGS_C99FSE CFLAGS_C99FSE = $CFLAGS_C99FSE
CPPFLAGS = $CPPFLAGS CPPFLAGS = $CPPFLAGS
LDFLAGS = $LDFLAGS_AUTO $LDFLAGS LDFLAGS = $LDFLAGS_AUTO $LDFLAGS
CROSS_COMPILE = $CROSS_COMPILE
EOF EOF
test "x$static" = xno && echo "STATIC_LIBS =" test "x$static" = xno && echo "STATIC_LIBS ="
test "x$shared" = xno && echo "SHARED_LIBS =" test "x$shared" = xno && echo "SHARED_LIBS ="