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authorUlrich Drepper <drepper@redhat.com>1999-07-26 02:38:26 +0000
committerUlrich Drepper <drepper@redhat.com>1999-07-26 02:38:26 +0000
commitc7f7281eca160b12767b9e3c25b443bce13512a2 (patch)
tree7d814d87dcbd5437bcaaa5bc19d94c78d7392ad2 /FAQ
parent63f7cb448b3958d7520d7eab6d092d7e6f11f1d9 (diff)
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Update.
* libio/iofclose.c (_IO_new_fclose): Detect new streams and handle them appropriately. * libio/oldiofclose.c (_IO_old_fclose): Likewise.
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@@ -41,6 +41,9 @@ please let me know.
1.15. What's the problem with configure --enable-omitfp?
1.16. I get failures during `make check'. What should I do?
1.17. What is symbol versioning good for? Do I need it?
+1.18. How can I compile on my fast ix86 machine a working libc for my slow
+ i386? After installing libc, programs abort with "Illegal
+ Instruction".
2. Installation and configuration issues
@@ -514,6 +517,23 @@ compatibility - forever! The binary compatibility you lose is not only
against the previous version of the GNU libc (version 2.0) but also against
all future versions.
+
+1.18. How can I compile on my fast ix86 machine a working libc for my slow
+ i386? After installing libc, programs abort with "Illegal
+ Instruction".
+
+{AJ} glibc and gcc might generate some instructions on your machine that
+aren't available on i386. You've got to tell glibc that you're configuring
+for i386 with adding i386 as your machine, for example:
+
+ ../configure --prefix=/usr i386-pc-linux-gnu
+
+And you need to tell gcc to only generate i386 code, just add `-mcpu=i386'
+(just -m386 doesn't work) to your CFLAGS.
+
+{UD} This applies not only to the i386. Compiling on a i686 for any older
+model will also fail if the above methods are not used.
+
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .