I recently upgraded my macOS GNAT from 2015 to Simon's latest offering ("if it ain't broke...") on new Apple hardware. At the same time I used Apple's Migration Assistant to transfer files. From Visual Studio Code, I use a short shell script to run
gprbuild. This has worked flawlessly for quite a while. Now things are broken and I can't figure out what is wrong even after reviewing the gprbuild docs.

GPRBUILD 23.0.0 (20221109) (aarch64-apple-darwin21)

Here is the shell line invoking gprbuild
gprbuild -p /Users/me/Documents/Programs/Ada/Code/My_Projects/TextMate_Sampling/build.gpr

Here is the gpr file named build.gpr after deleting a bunch of comments (sorry for the length);
with "MPFR_Library"; -- Multiple precision floating point ops and functions with "GMP_Library"; -- Multiple precision integer ops and functions
with "Octave_Library"; -- Octave built-in functions (not the loadable functions from Octave)
with "GSL_Library"; -- GNU Scientific Library, installed as part of Mac Ports.

project Build is
for Source_Dirs use
("/Users/me/Documents/Programs/Ada/Code/My_Projects/TextMate_Sampling/source/",
"/Users/me/Documents/Programs/Ada/Code/",
"/Users/me/Documents/Programs/Ada/Code/My_Projects/TextMate_Sampling/source/Tests",
"/Users/me/Documents/Programs/Ada/Code/My_Projects/TextMate_Sampling/source/Other_Code",
"/Users/me/Documents/Programs/Ada/Code/My_Code/Specialized/Sampling",
"/Users/me/Documents/Programs/Ada/Code/My_Code/Specialized/Radar",
"/Users/me/Documents/Programs/Ada/Code/My_Code/Specialized/Sampling/Post-processing",
"/Users/me/Documents/Programs/Ada/Code/My_Code/My_Tools",
"/Users/me/Documents/Programs/Ada/Code/My_Code/One-Offs",
"/Users/me/Documents/Programs/Ada/Code/My_Code/Examples_and_Snippets_and_Notes",
"/Users/me/Documents/Programs/Ada/Code/Bindings/PLplot/plplot_git/plplot/bindings/ada",
"/Users/me/Documents/Programs/Ada/Code/Bindings/PLplot/plplot_git/plplot/examples/ada",
"/Users/me/Documents/Programs/Ada/Code/Bindings/PLplot/PLplot_testing/",
"/Users/me/Documents/Programs/Ada/Code/Bindings/GMP_and_MPFR/SVN/adabindinggmpmpfr-read-only",
"/Users/me/Documents/Programs/Ada/Code/Bindings/Octave/",
"/Users/me/Documents/Programs/Ada/Code/Bindings/GSL/");

for Object_Dir use "build-normal";
for Exec_Dir use "product-normal";
for Main use ("Uniform_Aperture_Sum.adb"); -- <<< SET MAIN HERE

package Builder is
for Default_Switches ("Ada") use ("-O0", "-gnat12", "-g", "-gnatE", "-gnateE");
for Executable ("Uniform_Aperture_Sum.adb") use "run"; -- <<< AND HERE
end Builder;

package Compiler is
end Compiler;

package Binder is
for Default_Switches ("Ada") use ("-E");
end Binder;

package Linker is
for Default_Switches ("Ada") use ("-Wl,-no_pie");
end Linker;

package Pretty_Printer is
for Default_Switches ("ada") use ("--max-line-length=100", "--indentation=4",
"--indent-continuation=2", "--decimal-grouping=3", "--based-grouping=4", "--alignment",
"--RM-style-spacing", "--preserve-blank-lines", "--comments-fill", "--comments-special",
"--no-separate-return", "--split-line-before-op");
end Pretty_Printer;

end Build;


Here is the path to the main program. The path is in the sources list in build.gpr.
/Users/me/Documents/Programs/Ada/Code/My_Code/Specialized/Radar/Uniform_Aperture_Sum.adb

And here is the complaint from GNAT when I try to build:
build.gpr:61:19: "Uniform_Aperture_Sum.adb" is not a source of project "build" gprbuild: problems with main sources

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On Monday, December 5, 2022 at 9:47:44 AM UTC+1, Jerry wrote:

I recently upgraded my macOS GNAT from 2015 to Simon's latest offering ("if it ain't broke...") on new Apple hardware. At the same time I used Apple's Migration Assistant to transfer files. From Visual Studio Code, I use a short shell script to run

gprbuild. This has worked flawlessly for quite a while. Now things are broken and I can't figure out what is wrong even after reviewing the gprbuild docs.

<snip>

for Object_Dir use "build-normal";
for Exec_Dir use "product-normal";
for Main use ("Uniform_Aperture_Sum.adb"); -- <<< SET MAIN HERE

I don't know much about macOS, so I don't know for sure, but maybe you need a

package Naming is
for Casing use "MixedCase";
end Naming;

--
~egilhh

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Jerry <[email protected]> writes:

And here is the complaint from GNAT when I try to build:
build.gpr:61:19: "Uniform_Aperture_Sum.adb" is not a source of project "build"
gprbuild: problems with main sources

I didn't get that, but I did get it if the two filenames were cased
differently (and Egil's 'package Naming' suggestion didn't fix
it). Different casing doesn't cause problems with an x86_64 gprbuild.

The reason is very probably to be found here in the GCC sources: https://github.com/gcc-mirror/gcc/blob/master/gcc/ada/adaint.c#L599

__gnat_get_file_names_case_sensitive (void)
{
if (file_names_case_sensitive_cache == -1)
{
const char *sensitive = getenv ("GNAT_FILE_NAME_CASE_SENSITIVE");

if (sensitive != NULL
&& (sensitive[0] == '0' || sensitive[0] == '1')
&& sensitive[1] == '\0')
file_names_case_sensitive_cache = sensitive[0] - '0';
else
{
/* By default, we suppose filesystems aren't case sensitive on
Windows and Darwin (but they are on arm-darwin). */
#if defined (WINNT) || defined (__DJGPP__) \
|| (defined (__APPLE__) && !(defined (__arm__) || defined (__arm64__)))
file_names_case_sensitive_cache = 0;
#else
file_names_case_sensitive_cache = 1;
#endif
}
}
return file_names_case_sensitive_cache;
}

which is Wrong; file names are case-insensitive on Darwin, x86_64 or
aarch64 (aka arm64).

On the other hand, it's gprbuild that's complaining.

Anyway, try "export GNAT_FILE_NAME_CASE_SENSITIVE=0".

Or, of course, you could use lower-case filenames for all Ada source.

--- SoupGate-Win32 v1.05
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Both Simon's suggestion
export GNAT_FILE_NAME_CASE_SENSITIVE=0

and Egil's suggestion
package Naming is
for Casing use "MixedCase";
end Naming;

solve the problem.

Thanks. Not sure what the underlying problems are.

Jerry

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