Robert P. J. DAY says:
apparently, the patchset for gcc 4.2.1 applies properly to the
source for gcc 4.2.2 and gcc 4.2.3. so, if you want, you can simply
add support for those last two just by augmenting menuconfig and
adding a couple symlinks for those two directories. seems like a
cheap way to add a couple new versions.
1 This patch (C) 2007 Yann E. MORIN
4 First hunk of this patch solves compiling uClibc:
6 make[1]: Entering directory `/home/ymorin/x-tools/build/armeb-unknown-linux-uclibc/gcc-4.1.1-uClibc-0.9.28.1/build-libc'
8 libc/libc_so.a(difftime.os): In function `difftime':
9 difftime.c:(.text+0x8): undefined reference to `__floatsidf'
10 difftime.c:(.text+0x2c): undefined reference to `__subdf3'
11 libc/libc_so.a(_fpmaxtostr.os): In function `_fpmaxtostr':
12 _fpmaxtostr.c:(.text+0xd4): undefined reference to `__nedf2'
13 _fpmaxtostr.c:(.text+0xf8): undefined reference to `__eqdf2'
14 _fpmaxtostr.c:(.text+0x114): undefined reference to `__divdf3'
15 _fpmaxtostr.c:(.text+0x120): undefined reference to `__ltdf2'
16 _fpmaxtostr.c:(.text+0x1c4): undefined reference to `__muldf3'
17 _fpmaxtostr.c:(.text+0x388): undefined reference to `__gedf2'
18 _fpmaxtostr.c:(.text+0x430): undefined reference to `__adddf3'
19 libc/libc_so.a(__psfs_do_numeric.os): In function `__psfs_do_numeric':
20 __psfs_do_numeric.c:(.text+0x520): undefined reference to `__truncdfsf2'
21 libc/libc_so.a(strtof.os): In function `strtof':
22 strtof.c:(.text+0x1c): undefined reference to `__extendsfdf2'
23 /home/ymorin/x-tools/build/armeb-unknown-linux-uclibc/gcc-4.1.1-uClibc-0.9.28.1/cc_core_prefix/lib/gcc/arm-linux-uclibc/4.1.1/libgcc.a(_fixunsdfsi.o):
24 In function `__fixunsdfsi':
25 libgcc2.c:(.text+0x34): undefined reference to `__fixdfsi'
26 make[2]: *** [lib/libc.so] Error 1
27 make[1]: *** [lib/libc.so.0] Error 2
28 make[1]: Leaving directory `/home/ymorin/x-tools/build/armeb-unknown-linux-uclibc/gcc-4.1.1-uClibc-0.9.28.1/build-libc'
29 make: *** [/home/ymorin/x-tools/build/armeb-unknown-linux-uclibc/gcc-4.1.1-uClibc-0.9.28.1/build-libc/lib/libc.a]
32 The second hunk fixes building final gcc because soft-float implies using -lfloat (which we don't have).
35 diff -dur gcc-4.2.0.orig/gcc/config.gcc gcc-4.2.0/gcc/config.gcc
36 --- gcc-4.2.0.orig/gcc/config.gcc 2007-07-15 11:24:18.000000000 +0200
37 +++ gcc-4.2.0/gcc/config.gcc 2007-07-15 11:26:02.000000000 +0200
39 default_use_cxa_atexit=yes
42 - tmake_file="$tmake_file arm/t-linux"
43 + tmake_file="$tmake_file arm/t-linux arm/t-arm-elf"
46 tm_file="$tm_file arm/aout.h arm/arm.h"
47 diff -dur gcc-4.2.0.orig/gcc/config/arm/linux-elf.h gcc-4.2.0/gcc/config/arm/linux-elf.h
48 --- gcc-4.2.0.orig/gcc/config/arm/linux-elf.h 2007-07-15 11:24:18.000000000 +0200
49 +++ gcc-4.2.0/gcc/config/arm/linux-elf.h 2007-07-15 11:26:02.000000000 +0200
52 %{!shared:%{profile:-lc_p}%{!profile:-lc}}"
54 -#define LIBGCC_SPEC "%{msoft-float:-lfloat} %{mfloat-abi=soft*:-lfloat} -lgcc"
55 +#define LIBGCC_SPEC "-lgcc"
57 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"