Well we wanted to always have CFLAGS initialized by configure [to ignore stuff from env].
So now - if we are setting in makefile - it has to be set after this default is set - i.e after the line: include ${PETSC_DIR}/lib/petsc/conf/variables Or do: make CFLAGS=garbase ex1 There might be a different bug lurking here.. -PETSC_CCOMPILE_SINGLE = ${CC} -o $*.o -c ${CC_FLAGS} ${FLAGS} ${CPPFLAGS} +PETSC_CCOMPILE_SINGLE = ${CC} -o $*.o -c ${CC_FLAGS} ${CFLAGS} ${CPPFLAGS} Satish On Wed, 26 Apr 2023, Barry Smith wrote: > > $ make ex1 > mpicc -Wl,-bind_at_load -Wl,-multiply_defined,suppress -Wl,-multiply_defined > -Wl,suppress -Wl,-commons,use_dylibs -Wl,-search_paths_first > -Wl,-no_compact_unwind -Wall -Wwrite-strings -Wno-unknown-pragmas > -Wno-lto-type-mismatch -Wno-stringop-overflow -fvisibility=hidden -g3 -O0 > -I/Users/barrysmith/Src/petsc/include > -I/Users/barrysmith/Src/petsc/arch-release/include -I/opt/X11/include > ex1.c -Wl,-rpath,/Users/barrysmith/Src/petsc/arch-release/lib > -L/Users/barrysmith/Src/petsc/arch-release/lib -Wl,-rpath,/opt/X11/lib > -L/opt/X11/lib -Wl,-rpath,/Users/barrysmith/soft/mpich-clang-gfortran-opt/lib > -L/Users/barrysmith/soft/mpich-clang-gfortran-opt/lib > -Wl,-rpath,/opt/homebrew/Cellar/gcc/12.2.0/lib/gcc/current/gcc/aarch64-apple-darwin22/12 > > -L/opt/homebrew/Cellar/gcc/12.2.0/lib/gcc/current/gcc/aarch64-apple-darwin22/12 > -Wl,-rpath,/opt/homebrew/Cellar/gcc/12.2.0/lib/gcc/current/gcc > -L/opt/homebrew/Cellar/gcc/12.2.0/lib/gcc/current/gcc > -Wl,-rpath,/opt/homebrew/Cellar/gcc/12.2.0/ lib/gcc/ current -L/opt/homebrew/Cellar/gcc/12.2.0/lib/gcc/current -lpetsc -llapack -lblas -lX11 -lmpifort -lmpi -lpmpi -lgfortran -lemutls_w -lquadmath -lstdc++ -lquadmath -o ex1 > ~/Src/petsc/src/snes/tutorials (release *=) arch-release > $ more makefile > -include ../../../petscdir.mk > > MANSEC = SNES > EXAMPLESMATLAB = ex5m.m ex29view.m > DIRS = ex10d network > CLEANFILES = ex5f90t > CFLAGS = garbage > > > The new stuff in variables PETSC_COMPILE_SINGLE = ${PCC} -o $*.o -c > ${PCC_FLAGS} ${${CLANGUAGE}FLAGS} ${CCPPFLAGS} with the recursive use of $ > doesn't work? This is on my Mac but Get also has the problem on Polaris