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Date: Sat, 07 Feb 2026 01:33:08 +0530
From: Trupti &lt;trupti@linux.ibm.com&gt;
To: Submit &lt;submit@bugs.debian.org&gt;,
 debian-science-maintainers@lists.alioth.debian.org
Subject: newmat FTBFS with undefined symbol
 __parse_hwcap_and_convert_at_platform
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Package: newmat
Version: 1.10.4-9
Severity: serious
Tags: ftbfs
User: debian-powerpc@lists.debian.org
Usertags: ppc64el
X-Debbugs-Cc: debian-powerpc@lists.debian.org

Dear Newmat Maintainers,

Nemat(1.10.4-9) is FTBFS on ppc64el architecture with below error:


  libtool: compile:  g++ -DHAVE_CONFIG_H -I. -Wdate-time 
-D_FORTIFY_SOURCE=2 -g -O2 
-ffile-prefix-map=/build/reproducible-path/newmat-1.10.4=. 
-fstack-protector-strong -Wformat -Werror=format-security -std=gnu++98 
-c newfft.cpp -o newfft.o &gt;/dev/null 2&gt;&amp;1
/bin/bash ./libtool  --tag=CXX   --mode=link g++  -g -O2 
-ffile-prefix-map=/build/reproducible-path/newmat-1.10.4=. 
-fstack-protector-strong -Wformat -Werror=format-security -std=gnu++98 
-version-info 10:0:0 -Wl,-z,relro -Wl,-z,now -Wl,-z,defs -o libnewmat.la 
-rpath /usr/lib/powerpc64le-linux-gnu newmat1.lo newmat2.lo newmat3.lo 
newmat4.lo newmat5.lo newmat6.lo newmat7.lo newmat8.lo newmatex.lo 
bandmat.lo submat.lo myexcept.lo cholesky.lo evalue.lo fft.lo hholder.lo 
jacobi.lo newfft.lo sort.lo svd.lo newmatrm.lo newmat9.lo
libtool: link: g++  -fPIC -DPIC -shared -nostdlib 
/usr/lib/gcc/powerpc64le-linux-gnu/15/../../../powerpc64le-linux-gnu/crti.o 
/usr/lib/gcc/powerpc64le-linux-gnu/15/crtbeginS.o  .libs/newmat1.o 
.libs/newmat2.o .libs/newmat3.o .libs/newmat4.o .libs/newmat5.o 
.libs/newmat6.o .libs/newmat7.o .libs/newmat8.o .libs/newmatex.o 
.libs/bandmat.o .libs/submat.o .libs/myexcept.o .libs/cholesky.o 
.libs/evalue.o .libs/fft.o .libs/hholder.o .libs/jacobi.o .libs/newfft.o 
.libs/sort.o .libs/svd.o .libs/newmatrm.o .libs/newmat9.o   
-L/usr/lib/gcc/powerpc64le-linux-gnu/15 
-L/usr/lib/gcc/powerpc64le-linux-gnu/15/../../../powerpc64le-linux-gnu 
-L/usr/lib/gcc/powerpc64le-linux-gnu/15/../../../../lib 
-L/lib/powerpc64le-linux-gnu -L/lib/../lib 
-L/usr/lib/powerpc64le-linux-gnu -L/usr/lib/../lib 
-L/usr/lib/gcc/powerpc64le-linux-gnu/15/../../.. -L/lib -L/usr/lib 
-lstdc++ -lm -lc -lgcc_s /usr/lib/gcc/powerpc64le-linux-gnu/15/crtendS.o 
/usr/lib/gcc/powerpc64le-linux-gnu/15/../../../powerpc64le-linux-gnu/crtn.o 
  -g -O2 -ffile-prefix-map=/build/reproducible-path/newmat-1.10.4=. 
-fstack-protector-strong -Werror=format-security -Wl,-z -Wl,relro -Wl,-z 
-Wl,now -Wl,-z -Wl,defs   -Wl,-soname -Wl,libnewmat.so.10 -o 
.libs/libnewmat.so.10.0.0
/usr/bin/ld: 
/usr/lib/gcc/powerpc64le-linux-gnu/15/libgcc.a(float128-ifunc.o):(.data+0x0): 
undefined reference to `__parse_hwcap_and_convert_at_platform'
collect2: error: ld returned 1 exit status
make[2]: *** [Makefile:699: libnewmat.la] Error 1
make[2]: Leaving directory '/build/reproducible-path/newmat-1.10.4'
make[1]: *** [Makefile:608: all] Error 2
make[1]: Leaving directory '/build/reproducible-path/newmat-1.10.4'
dh_auto_build: error: make -j8 returned exit code 2
make: *** [debian/rules:23: binary-arch] Error 25
dpkg-buildpackage: error: debian/rules binary-arch subprocess failed 
with exit status 2


Here is full build log for reference 
https://buildd.debian.org/status/fetch.php?pkg=newmat&amp;arch=ppc64el&amp;ver=1.10.4-9%2Bb1&amp;stamp=1768632273&amp;raw=0

Note: Previously built with gcc 14 now falling with gcc 15.


Thanks,
Trupti
]