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Bug 879755 - sci-chemistry/mpqc: possible configure breakage with Clang 16
Summary: sci-chemistry/mpqc: possible configure breakage with Clang 16
Status: CONFIRMED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: Current packages (show other bugs)
Hardware: All All
: Normal normal (vote)
Assignee: Gentoo Chemistry-Related Packages
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: implicit-in-configure
  Show dependency tree
 
Reported: 2022-11-04 22:14 UTC by Matt Jolly
Modified: 2024-05-20 22:21 UTC (History)
1 user (show)

See Also:
Package list:
Runtime testing required: ---


Attachments
clang-14.log (clang-14.log,15.78 KB, text/plain)
2022-11-04 22:14 UTC, Matt Jolly
Details
clang-15.log (clang-15.log,15.55 KB, text/plain)
2022-11-04 22:14 UTC, Matt Jolly
Details
clang.diff (clang.diff,11.61 KB, text/plain)
2022-11-04 22:14 UTC, Matt Jolly
Details

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Description Matt Jolly gentoo-dev 2022-11-04 22:14:51 UTC
This package has been identified via automation as potentially impacted by upcoming Clang 16 changes.
The following have been identified as potential issues:

[-Werror,-Wimplicit-function-declaration]
[-Werror,-Wimplicit-int]

[-Werror,-Wimplicit-function-declaration]
error: call to undeclared function 'ffunc'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
error: call to undeclared function 'ffunc_'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]

[-Werror,-Wimplicit-int]
error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
Comment 1 Matt Jolly gentoo-dev 2022-11-04 22:14:53 UTC
Created attachment 827513 [details]
clang-14.log

build log
Comment 2 Matt Jolly gentoo-dev 2022-11-04 22:14:55 UTC
Created attachment 827515 [details]
clang-15.log

build log
Comment 3 Matt Jolly gentoo-dev 2022-11-04 22:14:57 UTC
Created attachment 827517 [details]
clang.diff

build log
Comment 4 Eli Schwartz 2024-05-20 22:21:03 UTC
AC_MSG_CHECKING(fortran symbols)
if test -n "$F77" -a "$F77" != no ; then
  /bin/rm -f ffunc.f flink.c
  echo "      subroutine ffunc()" > ffunc.f
  echo "      return" >> ffunc.f
  echo "      end" >> ffunc.f
  $F77 -c ffunc.f 1>/dev/null 2>/dev/null
  echo "main(){ FF(); return 0; }" > flink.c
  if $CC -o flink -DFF=ffunc flink.c ffunc.o $LDFLAGS $LIBS 1>/dev/null 2>/dev/null; then
    AC_MSG_RESULT(same as C)
    F77_SYMBOLS=symbol
  elif $CC -o flink -DFF=ffunc_ flink.c ffunc.o $LDFLAGS $LIBS 1>/dev/null 2>/dev/null; then
    AC_MSG_RESULT(lowercase with underscore)
    F77_SYMBOLS=symbol_
  elif $CC -o flink -DFF=FFUNC flink.c ffunc.o $LDFLAGS $LIBS 1>/dev/null 2>/dev/null; then
    AC_MSG_RESULT(uppercase)
    F77_SYMBOLS=SYMBOL
  elif $CC -o flink -DFF=FFUNC_ flink.c ffunc.o $LDFLAGS $LIBS 1>/dev/null 2>/dev/null; then
    AC_MSG_RESULT(uppercase with underscore)
    F77_SYMBOLS=SYMBOL_
  else
    AC_MSG_RESULT(giving up)
    AC_MSG_ERROR(could not determine F77 symbol names)
  fi
  /bin/rm -f ffunc.f ffunc.o flink flink.c flink.o ffunc
else
  F77_SYMBOLS=symbol_
  AC_MSG_RESULT(guessing lowercase with underscore)
fi