# HG changeset patch
# User Bryan Hundven <bryanhundven@gmail.com>
# Date 1289434277 -3600
# Node ID a797ad9c7bd57897d502bd7ddb43e1841fb0ec02
# Parent  d3af3efce68c856422588542a1c48e60ecf7b47b
libc/*glibc: enable selection of the oldest supported ABI

[Yann E. MORIN: split the original patch]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>

diff -r d3af3efce68c -r a797ad9c7bd5 config/libc/glibc-eglibc.in-common
--- a/config/libc/glibc-eglibc.in-common	Thu Nov 11 00:29:53 2010 +0100
+++ b/config/libc/glibc-eglibc.in-common	Thu Nov 11 01:11:17 2010 +0100
@@ -65,6 +65,18 @@
     help
       Do not include versioning information in the library objects.
 
+config LIBC_OLDEST_ABI
+    string
+    prompt "Oldest supported ABI"
+    default ""
+    help
+      Set the oldest ABI supported by the C library.
+      
+      Setting this option, for example, to 2.2 will provide ABI support
+      back to (e)glibc-2.2.
+
+      If this option is not set, (e)glibc will choose for you.
+
 config LIBC_GLIBC_USE_PORTS
     bool
     prompt "Use the ports addon"
diff -r d3af3efce68c -r a797ad9c7bd5 scripts/build/libc/eglibc.sh
--- a/scripts/build/libc/eglibc.sh	Thu Nov 11 00:29:53 2010 +0100
+++ b/scripts/build/libc/eglibc.sh	Thu Nov 11 01:11:17 2010 +0100
@@ -296,6 +296,10 @@
         extra_config+=("--disable-versioning")
     fi
 
+    if [ "${CT_LIBC_OLDEST_ABI}" != "" ]; then
+        extra_config+=("--enable-oldest-abi=${CT_LIBC_OLDEST_ABI}")
+    fi
+
     case "$(do_libc_add_ons_list ,)" in
         "") ;;
         *)  extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");;
diff -r d3af3efce68c -r a797ad9c7bd5 scripts/build/libc/glibc.sh
--- a/scripts/build/libc/glibc.sh	Thu Nov 11 00:29:53 2010 +0100
+++ b/scripts/build/libc/glibc.sh	Thu Nov 11 01:11:17 2010 +0100
@@ -373,6 +373,10 @@
         extra_config+=("--disable-versioning")
     fi
 
+    if [ "${CT_LIBC_OLDEST_ABI}" != "" ]; then
+        extra_config+=("--enable-oldest-abi=${CT_LIBC_OLDEST_ABI}")
+    fi
+
     case "$(do_libc_add_ons_list ,)" in
         "") ;;
         *)  extra_config+=("--enable-add-ons=$(do_libc_add_ons_list ,)");;