Re: [Fwd: Re: [PATCH 1 of 3] arch: s390 and 390x glibc patch]

["Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>]

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Harold, Mike,
All,

On Saturday 14 November 2009 16:23:18 Mike Frysinger wrote:
> On Wednesday 11 November 2009 18:37:44 Harold Grovesteen wrote:
> > Mike Frysinger wrote:
> > >under Gentoo, a bunch of cache vars
> > >are forced just for the headers step as there is no compiler to test. 
> > > those include mlong double tests.
> > >	libc_cv_mlong_double_128=yes
> > >	libc_cv_mlong_double_128ibm=yes
> > How do I achieve the equivalent of this with crosstool-ng?
> no idea.  yann might know.  just export those vars into the environment.  this 
> should be safe to do for all targets during the headers configure step only.

There is CT_LIBC_GLIBC_CONFIGPARMS that can be set in the menuconfig.
The value set in this variable is used to create a file named 'configparms'
in the top-level of the build dir. That file is then included from the
Makeconfig makefile.

It is possible to use it to pass one value. Passing more is not yet possible.
I can work something to handle more. Care to try the attached patch?

Regards,
Yann E. MORIN.

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[-- Attachment #2: ct-ng-many-configparms-values.patch --]
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diff --git a/config/libc/glibc-eglibc.in-common b/config/libc/glibc-eglibc.in-common
--- a/config/libc/glibc-eglibc.in-common
+++ b/config/libc/glibc-eglibc.in-common
@@ -38,8 +38,8 @@
       
       Unless you are building a toolchain for sh3/4, you should leave that empty.
       
-      Note: this is awkward, and doesn't work well if you need more than one
-            line in configparms
+      Note: If you need to pass more than one value, separate them with
+            '\n'. Eg.:  var1=val1\nvar2=val2
 
 config LIBC_GLIBC_EXTRA_CFLAGS
     string
diff --git a/scripts/build/libc/glibc.sh b/scripts/build/libc/glibc.sh
--- a/scripts/build/libc/glibc.sh
+++ b/scripts/build/libc/glibc.sh
@@ -141,7 +141,7 @@
     extra_config+=("$(do_libc_min_kernel_config)")
 
     # Pre-seed the configparms file with values from the config option
-    echo "${CT_LIBC_GLIBC_CONFIGPARMS}" > configparms
+    printf "${CT_LIBC_GLIBC_CONFIGPARMS}" > configparms
 
     cross_cc=$(CT_Which "${CT_TARGET}-gcc")
     CT_DoLog DEBUG "Using gcc for target: '${cross_cc}'"
@@ -309,7 +309,7 @@
     CT_DoLog DEBUG "Extra CC args passed    : '${extra_cc_args}'"
 
     # Pre-seed the configparms file with values from the config option
-    echo "${CT_LIBC_GLIBC_CONFIGPARMS}" > configparms
+    printf "${CT_LIBC_GLIBC_CONFIGPARMS}" > configparms
 
     echo "libc_cv_forced_unwind=yes" > config.cache
     echo "libc_cv_c_cleanup=yes" >> config.cache
@@ -418,7 +418,7 @@
     CT_DoLog DEBUG "Extra CC args passed    : '${extra_cc_args}'"
 
     # Pre-seed the configparms file with values from the config option
-    echo "${CT_LIBC_GLIBC_CONFIGPARMS}" > configparms
+    printf "${CT_LIBC_GLIBC_CONFIGPARMS}" > configparms
 
     # For glibc 2.3.4 and later we need to set some autoconf cache
     # variables, because nptl/sysdeps/pthread/configure.in does not


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