Do not build on OCaml 5
FTBFS due to usage of deprecated Bigarray C API:
#=== ERROR while compiling fftw3.0.8.4 ========================================#
# context 2.2.0~alpha~dev | linux/x86_64 | ocaml-base-compiler.5.0.0 | file:///home/opam/opam-repository
# path ~/.opam/5.0/.opam-switch/build/fftw3.0.8.4
# command ~/.opam/opam-init/hooks/sandbox.sh build dune build -p fftw3 -j 47
# exit-code 1
# env-file ~/.opam/log/fftw3-7-0453ed.env
# output-file ~/.opam/log/fftw3-7-0453ed.out
### output ###
# File "src/dune", line 8, characters 14-27:
# 8 | (c_names fftw3_stubs_c)
# ^^^^^^^^^^^^^
# (cd _build/default/src && /usr/bin/gcc -O2 -fno-strict-aliasing -fwrapv -pthread -fPIC -D_FILE_OFFSET_BITS=64 -O2 -fno-strict-aliasing -fwrapv -pthread -fPIC -DFFTW3F_EXISTS -g -I /home/opam/.opam/5.0/lib/ocaml -o fftw3_stubs_c.o -c fftw3_stubs_c.c)
# fftw3_stubs_c.c: In function 'fftw3_caml_ba_finalize':
# fftw3_stubs_c.c:77:30: warning: implicit declaration of function 'Bigarray_val' [-Wimplicit-function-declaration]
# 77 | struct caml_bigarray * b = Bigarray_val(v);
# | ^~~~~~~~~~~~
# fftw3_stubs_c.c:77:30: warning: initialization of 'struct caml_bigarray *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# fftw3_stubs_c.c:81:8: error: invalid use of undefined type 'struct caml_bigarray'
# 81 | if (b->proxy == NULL) {
# | ^~
# fftw3_stubs_c.c:82:16: error: invalid use of undefined type 'struct caml_bigarray'
# 82 | fftw_free(b->data);
# | ^~
# fftw3_stubs_c.c:84:13: error: invalid use of undefined type 'struct caml_bigarray'
# 84 | if (-- b->proxy->refcount == 0) {
# | ^~
# fftw3_stubs_c.c:85:18: error: invalid use of undefined type 'struct caml_bigarray'
# 85 | fftw_free(b->proxy->data);
# | ^~
# fftw3_stubs_c.c:86:23: error: invalid use of undefined type 'struct caml_bigarray'
# 86 | caml_stat_free(b->proxy);
# | ^~
# In file included from fftw3_stubs_c.c:262:
# fftw3SD_stubs.c: In function 'fftw_ocaml_execute':
# fftw3SD_stubs.c:53:3: warning: implicit declaration of function 'enter_blocking_section'; did you mean 'caml_enter_blocking_section'? [-Wimplicit-function-declaration]
# 53 | enter_blocking_section(); /* Allow other threads */
# | ^~~~~~~~~~~~~~~~~~~~~~
# | caml_enter_blocking_section
# fftw3SD_stubs.c:55:3: warning: implicit declaration of function 'leave_blocking_section'; did you mean 'caml_leave_blocking_section'? [-Wimplicit-function-declaration]
# 55 | leave_blocking_section(); /* Disallow other threads */
# | ^~~~~~~~~~~~~~~~~~~~~~
# | caml_leave_blocking_section
# fftw3SD_stubs.c: In function 'fftw_ocaml_execute_dft':
# fftw3SD_stubs.c:63:22: warning: implicit declaration of function 'Data_bigarray_val'; did you mean 'Caml_ba_array_val'? [-Wimplicit-function-declaration]
# 63 | FFTW(complex) *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# | Caml_ba_array_val
# fftw3SD_stubs.c:63:22: warning: initialization of 'double (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# fftw3SD_stubs.c:64:22: warning: initialization of 'double (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 64 | FFTW(complex) *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftw_ocaml_execute_split_dft':
# fftw3SD_stubs.c:79:15: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 79 | FLOAT *ri = Data_bigarray_val(vri);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:80:15: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 80 | FLOAT *ii = Data_bigarray_val(vii);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:81:15: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 81 | FLOAT *ro = Data_bigarray_val(vro);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:82:15: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 82 | FLOAT *io = Data_bigarray_val(vio);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftw_ocaml_execute_dft_r2c':
# fftw3SD_stubs.c:96:14: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 96 | FLOAT *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:97:22: warning: initialization of 'double (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 97 | FFTW(complex) *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftw_ocaml_execute_split_dft_r2c':
# fftw3SD_stubs.c:112:14: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 112 | FLOAT *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:113:15: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 113 | FLOAT *ro = Data_bigarray_val(vro);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:114:15: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 114 | FLOAT *io = Data_bigarray_val(vio);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftw_ocaml_execute_dft_c2r':
# fftw3SD_stubs.c:128:22: warning: initialization of 'double (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 128 | FFTW(complex) *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:129:14: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 129 | FLOAT *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftw_ocaml_execute_split_dft_c2r':
# fftw3SD_stubs.c:144:15: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 144 | FLOAT *ri = Data_bigarray_val(vri);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:145:15: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 145 | FLOAT *ii = Data_bigarray_val(vii);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:146:14: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 146 | FLOAT *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftw_ocaml_execute_r2r':
# fftw3SD_stubs.c:160:14: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 160 | FLOAT *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:161:14: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 161 | FLOAT *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftw_ocaml_guru_dft':
# fftw3SD_stubs.c:206:22: warning: initialization of 'double (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 206 | FFTW(complex) *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:207:22: warning: initialization of 'double (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 207 | FFTW(complex) *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:179:20: error: 'MAX_NUM_DIMS' undeclared (first use in this function)
# 179 | FFTW(iodim) dims[MAX_NUM_DIMS], howmany_dims[MAX_NUM_DIMS]; \
# | ^~~~~~~~~~~~
# fftw3SD_stubs.c:208:3: note: in expansion of macro 'MAKE_DIMS'
# 208 | MAKE_DIMS();
# | ^~~~~~~~~
# fftw3SD_stubs.c:179:20: note: each undeclared identifier is reported only once for each function it appears in
# 179 | FFTW(iodim) dims[MAX_NUM_DIMS], howmany_dims[MAX_NUM_DIMS]; \
# | ^~~~~~~~~~~~
# fftw3SD_stubs.c:208:3: note: in expansion of macro 'MAKE_DIMS'
# 208 | MAKE_DIMS();
# | ^~~~~~~~~
# fftw3SD_stubs.c:6:3: warning: implicit declaration of function 'alloc_custom'; did you mean 'caml_alloc_custom'? [-Wimplicit-function-declaration]
# 6 | alloc_custom(&FFTW_OCAML(plan_ops), sizeof(FFTW(plan)), \
# | ^~~~~~~~~~~~
# fftw3SD_stubs.c:219:10: note: in expansion of macro 'ALLOC_PLAN'
# 219 | plan = ALLOC_PLAN();
# | ^~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftw_ocaml_guru_r2c':
# fftw3SD_stubs.c:245:14: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 245 | FLOAT *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:246:22: warning: initialization of 'double (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 246 | FFTW(complex) *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:179:20: error: 'MAX_NUM_DIMS' undeclared (first use in this function)
# 179 | FFTW(iodim) dims[MAX_NUM_DIMS], howmany_dims[MAX_NUM_DIMS]; \
# | ^~~~~~~~~~~~
# fftw3SD_stubs.c:247:3: note: in expansion of macro 'MAKE_DIMS'
# 247 | MAKE_DIMS();
# | ^~~~~~~~~
# fftw3SD_stubs.c: In function 'fftw_ocaml_guru_c2r':
# fftw3SD_stubs.c:285:22: warning: initialization of 'double (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 285 | FFTW(complex) *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:286:14: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 286 | FLOAT *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:179:20: error: 'MAX_NUM_DIMS' undeclared (first use in this function)
# 179 | FFTW(iodim) dims[MAX_NUM_DIMS], howmany_dims[MAX_NUM_DIMS]; \
# | ^~~~~~~~~~~~
# fftw3SD_stubs.c:287:3: note: in expansion of macro 'MAKE_DIMS'
# 287 | MAKE_DIMS();
# | ^~~~~~~~~
# fftw3SD_stubs.c: In function 'fftw_ocaml_guru_r2r':
# fftw3SD_stubs.c:324:14: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 324 | FLOAT *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:325:14: warning: initialization of 'double *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 325 | FLOAT *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:326:23: error: 'MAX_NUM_DIMS' undeclared (first use in this function)
# 326 | FFTW(r2r_kind) kind[MAX_NUM_DIMS];
# | ^~~~~~~~~~~~
# In file included from fftw3_stubs_c.c:283:
# fftw3SD_stubs.c: In function 'fftwf_ocaml_execute_dft':
# fftw3SD_stubs.c:63:22: warning: initialization of 'float (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 63 | FFTW(complex) *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:64:22: warning: initialization of 'float (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 64 | FFTW(complex) *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftwf_ocaml_execute_split_dft':
# fftw3SD_stubs.c:79:15: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 79 | FLOAT *ri = Data_bigarray_val(vri);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:80:15: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 80 | FLOAT *ii = Data_bigarray_val(vii);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:81:15: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 81 | FLOAT *ro = Data_bigarray_val(vro);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:82:15: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 82 | FLOAT *io = Data_bigarray_val(vio);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftwf_ocaml_execute_dft_r2c':
# fftw3SD_stubs.c:96:14: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 96 | FLOAT *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:97:22: warning: initialization of 'float (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 97 | FFTW(complex) *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftwf_ocaml_execute_split_dft_r2c':
# fftw3SD_stubs.c:112:14: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 112 | FLOAT *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:113:15: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 113 | FLOAT *ro = Data_bigarray_val(vro);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:114:15: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 114 | FLOAT *io = Data_bigarray_val(vio);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftwf_ocaml_execute_dft_c2r':
# fftw3SD_stubs.c:128:22: warning: initialization of 'float (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 128 | FFTW(complex) *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:129:14: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 129 | FLOAT *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftwf_ocaml_execute_split_dft_c2r':
# fftw3SD_stubs.c:144:15: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 144 | FLOAT *ri = Data_bigarray_val(vri);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:145:15: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 145 | FLOAT *ii = Data_bigarray_val(vii);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:146:14: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 146 | FLOAT *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftwf_ocaml_execute_r2r':
# fftw3SD_stubs.c:160:14: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 160 | FLOAT *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:161:14: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 161 | FLOAT *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c: In function 'fftwf_ocaml_guru_dft':
# fftw3SD_stubs.c:206:22: warning: initialization of 'float (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 206 | FFTW(complex) *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:207:22: warning: initialization of 'float (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 207 | FFTW(complex) *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:179:20: error: 'MAX_NUM_DIMS' undeclared (first use in this function)
# 179 | FFTW(iodim) dims[MAX_NUM_DIMS], howmany_dims[MAX_NUM_DIMS]; \
# | ^~~~~~~~~~~~
# fftw3SD_stubs.c:208:3: note: in expansion of macro 'MAKE_DIMS'
# 208 | MAKE_DIMS();
# | ^~~~~~~~~
# fftw3SD_stubs.c: In function 'fftwf_ocaml_guru_r2c':
# fftw3SD_stubs.c:245:14: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 245 | FLOAT *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:246:22: warning: initialization of 'float (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 246 | FFTW(complex) *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:179:20: error: 'MAX_NUM_DIMS' undeclared (first use in this function)
# 179 | FFTW(iodim) dims[MAX_NUM_DIMS], howmany_dims[MAX_NUM_DIMS]; \
# | ^~~~~~~~~~~~
# fftw3SD_stubs.c:247:3: note: in expansion of macro 'MAKE_DIMS'
# 247 | MAKE_DIMS();
# | ^~~~~~~~~
# fftw3SD_stubs.c: In function 'fftwf_ocaml_guru_c2r':
# fftw3SD_stubs.c:285:22: warning: initialization of 'float (*)[2]' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 285 | FFTW(complex) *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:286:14: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 286 | FLOAT *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:179:20: error: 'MAX_NUM_DIMS' undeclared (first use in this function)
# 179 | FFTW(iodim) dims[MAX_NUM_DIMS], howmany_dims[MAX_NUM_DIMS]; \
# | ^~~~~~~~~~~~
# fftw3SD_stubs.c:287:3: note: in expansion of macro 'MAKE_DIMS'
# 287 | MAKE_DIMS();
# | ^~~~~~~~~
# fftw3SD_stubs.c: In function 'fftwf_ocaml_guru_r2r':
# fftw3SD_stubs.c:324:14: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 324 | FLOAT *i = Data_bigarray_val(vi);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:325:14: warning: initialization of 'float *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
# 325 | FLOAT *o = Data_bigarray_val(vo);
# | ^~~~~~~~~~~~~~~~~
# fftw3SD_stubs.c:326:23: error: 'MAX_NUM_DIMS' undeclared (first use in this function)
# 326 | FFTW(r2r_kind) kind[MAX_NUM_DIMS];
# | ^~~~~~~~~~~~
anil.recoil.org