Hi! I'm trying to test some patch I've written, and found some build error that seems entirely unrelated to my patch. git-blame(1) points to:
52d754a1a620 (2025-09-09; "Fortran: make STAT/LSTAT/FSTAT intrinsics
generic [PR82480]")
The build error is:
/home/alx/src/gnu/gcc/fwd3/./prev-gcc/xg++
-B/home/alx/src/gnu/gcc/fwd3/./prev-gcc/
-B/opt/local/gnu/gcc/fwd/x86_64-pc-linux-gnu/bin/ -nostdinc++
-B/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-B/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
-I/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/include/x86_64-pc-linux-gnu
-I/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/include
-I/home/alx/src/gnu/gcc/fwd/libstdc++-v3/libsupc++
-L/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/src/.libs
-L/home/alx/src/gnu/gcc/fwd3/prev-x86_64-pc-linux-gnu/libstdc++-v3/libsupc++/.libs
-fno-PIE -c -DIN_GCC_FRONTEND -g -O2 -fno-checking -gtoggle -DIN_GCC
-fno-exceptions -fno-rtti -fasynchronous-unwind-tables -W -Wall
-Wno-error=narrowing -Wwrite-strings -Wcast-qual -Wmissing-format-attribute
-Wconditionally-supported -Woverloaded-virtual -pedantic -Wno-long-long
-Wno-variadic-macros -Wno-overlength-strings -Werror -DHAVE_CONFIG_H -fno-PIE
-I. -Ifortran -I../../fwd/gcc -I../../fwd/gcc/fortran
-I../../fwd/gcc/../include -I../../fwd/gcc/../libcpp/include
-I../../fwd/gcc/../libcody -I../../fwd/gcc/../libdecnumber
-I../../fwd/gcc/../libdecnumber/bid -I../libdecnumber
-I../../fwd/gcc/../libbacktrace -o fortran/trans-intrinsic.o -MT
fortran/trans-intrinsic.o -MMD -MP -MF fortran/.deps/trans-intrinsic.TPo
../../fwd/gcc/fortran/trans-intrinsic.cc
In function ‘tree_node* conv_intrinsic_fstat_lstat_stat_sub(gfc_code*)’,
inlined from ‘tree_node* gfc_conv_intrinsic_subroutine(gfc_code*)’
at ../../fwd/gcc/fortran/trans-intrinsic.cc:13477:49:
../../fwd/gcc/fortran/trans-intrinsic.cc:5964:31: error: ‘unit’ may be
used uninitialized [-Werror=maybe-uninitialized]
5964 | tmp = build_call_expr_loc (input_location, tmp, 3, unit,
vals,
|
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5965 | stat ? arg3 : null_pointer_node);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../fwd/gcc/fortran/trans-intrinsic.cc: In function ‘tree_node*
gfc_conv_intrinsic_subroutine(gfc_code*)’:
../../fwd/gcc/fortran/trans-intrinsic.cc:5881:8: note: ‘unit’ was
declared here
5881 | tree unit;
| ^~~~
In function ‘tree_node* conv_intrinsic_fstat_lstat_stat_sub(gfc_code*)’,
inlined from ‘tree_node* gfc_conv_intrinsic_subroutine(gfc_code*)’
at ../../fwd/gcc/fortran/trans-intrinsic.cc:13477:49:
../../fwd/gcc/fortran/trans-intrinsic.cc:5967:31: error: ‘name’ may be
used uninitialized [-Werror=maybe-uninitialized]
5967 | tmp = build_call_expr_loc (input_location, tmp, 4, name,
vals,
|
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5968 | stat ? arg3 : null_pointer_node,
slen);
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../fwd/gcc/fortran/trans-intrinsic.cc: In function ‘tree_node*
gfc_conv_intrinsic_subroutine(gfc_code*)’:
../../fwd/gcc/fortran/trans-intrinsic.cc:5882:8: note: ‘name’ was
declared here
5882 | tree name, slen;
| ^~~~
In function ‘tree_node* conv_intrinsic_fstat_lstat_stat_sub(gfc_code*)’,
inlined from ‘tree_node* gfc_conv_intrinsic_subroutine(gfc_code*)’
at ../../fwd/gcc/fortran/trans-intrinsic.cc:13477:49:
../../fwd/gcc/fortran/trans-intrinsic.cc:5967:31: error: ‘slen’ may be
used uninitialized [-Werror=maybe-uninitialized]
5967 | tmp = build_call_expr_loc (input_location, tmp, 4, name,
vals,
|
~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
5968 | stat ? arg3 : null_pointer_node,
slen);
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../fwd/gcc/fortran/trans-intrinsic.cc: In function ‘tree_node*
gfc_conv_intrinsic_subroutine(gfc_code*)’:
../../fwd/gcc/fortran/trans-intrinsic.cc:5882:14: note: ‘slen’ was
declared here
5882 | tree name, slen;
| ^~~~
Have a lovely night!
Alex
--
<https://www.alejandro-colomar.es>
Use port 80 (that is, <...:80/>).
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