Add support for building in Termux-Android in meson

- introduce cross perl
- workaround for the android linker

src/fe-common/core/fe-exec.c

@@ -281,8 +281,8 @@ static void exec_show_list(void)
 
 static void process_exec(PROCESS_REC *rec, const char *cmd)
 {
-	const char *shell_args[4] = { "/bin/sh", "-c", NULL, NULL };
-        char **args;
+	const char *shell_args[4] = { FHS_PREFIX "/bin/sh", "-c", NULL, NULL };
+	char **args;
 	int in[2], out[2];
         int n;
 
@@ -341,7 +341,7 @@ static void process_exec(PROCESS_REC *rec, const char *cmd)
 	if (rec->shell) {
 		execvp(shell_args[0], (char **) shell_args);
 
-		fprintf(stderr, "Exec: /bin/sh: %s\n", g_strerror(errno));
+		fprintf(stderr, "Exec: " FHS_PREFIX "/bin/sh: %s\n", g_strerror(errno));
 	} else {
 		args = g_strsplit(cmd, " ", -1);
                 execvp(args[0], args);

src/fe-fuzz/fe-common/core/theme-load.c

@@ -37,7 +37,7 @@
 #include <string.h>
 
 int LLVMFuzzerInitialize(int *argc, char ***argv) {
-	char *irssi_argv[] = {*argv[0], "--home", "/tmp/irssi", NULL};
+	char *irssi_argv[] = { *argv[0], "--home", FHS_PREFIX "/tmp/irssi", NULL };
 	int irssi_argc = sizeof(irssi_argv) / sizeof(char *) - 1;
 #ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
 	g_log_set_null_logger();
@@ -57,7 +57,7 @@ int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
 	THEME_REC *theme;
 	gchar *copy = g_strndup((const gchar *)data, size);
 
-	FILE *fp = fopen("/tmp/irssi/fuzz.theme", "wb");
+	FILE *fp = fopen(FHS_PREFIX "/tmp/irssi/fuzz.theme", "wb");
 	if (fp) {
 		fwrite(copy, strlen(copy), 1, fp);
 		fclose(fp);

src/perl/common/meson.build

@@ -1,4 +1,5 @@
-libperl_common_a = shared_module('Irssi',
+
+libperl_Irssi_a = shared_module('Irssi',
   [ xsubpp.process(
     files(
       'Channel.xs',
@@ -24,6 +25,7 @@ libperl_common_a = shared_module('Irssi',
   include_directories : rootinc,
   implicit_include_directories : true,
   dependencies : dep + [ perl_dep ],
+  link_with : dl_cross_perl_core,
 )
 
 install_headers(

src/perl/irc/meson.build

@@ -1,4 +1,4 @@
-libperl_irc_a = shared_module('Irc',
+libperl_Irssi_Irc_a = shared_module('Irc',
   [ xsubpp.process(
     files(
       'Channel.xs',
@@ -26,6 +26,7 @@ libperl_irc_a = shared_module('Irc',
   include_directories : rootinc,
   implicit_include_directories : true,
   dependencies : dep + [ perl_dep ],
+  link_with : dl_cross_perl_core,
 )
 
 install_headers(

src/perl/meson.build

@@ -4,7 +4,7 @@ perl_signals_list_h = custom_target('perl-signals-list.h',
   output : 'perl-signals-list.h',
   capture : true,
   depend_files : files('get-signals.pl'),
-  command : [perl, files('get-signals.pl'), '@INPUT@'],
+  command : [build_perl, files('get-signals.pl'), '@INPUT@'],
 )
 
 irssi_core_pl_h = custom_target('irssi-core.pl.h',
@@ -14,7 +14,7 @@ irssi_core_pl_h = custom_target('irssi-core.pl.h',
   command : [file2header, '@INPUT@', 'irssi_core_code'],
 )
 
-shared_module('perl_core',
+libperl_core_a = shared_module('perl_core',
   files(
     'perl-common.c',
     'perl-core.c',
@@ -35,11 +35,16 @@ shared_module('perl_core',
   install_dir : moduledir,
   install_rpath : perl_rpath,
   build_rpath : perl_rpath,
-  dependencies : dep_cflagsonly + [ perl_dep ],
+  dependencies : dep_cflagsonly + [ perl_dep ] + dl_cross_dep,
   override_options : ['b_asneeded=false'],
 )
 
-shared_module('fe_perl',
+dl_cross_perl_core = []
+if need_dl_cross_link
+  dl_cross_perl_core += libperl_core_a
+endif
+
+libfe_perl_a = shared_module('fe_perl',
   files(
     'module-formats.c',
     'perl-fe.c',
@@ -52,6 +57,7 @@ shared_module('fe_perl',
   install : true,
   install_dir : moduledir,
   dependencies : dep,
+  link_with : dl_cross_perl_core,
 )
 
 subdir('common')

src/perl/textui/meson.build

@@ -1,4 +1,4 @@
-libperl_textui_a = shared_module('TextUI',
+libperl_Irssi_TextUI_a = shared_module('TextUI',
   [ xsubpp.process(
     files(
       'Statusbar.xs',
@@ -22,6 +22,7 @@ libperl_textui_a = shared_module('TextUI',
   include_directories : rootinc,
   implicit_include_directories : true,
   dependencies : dep + [ perl_dep ],
+  link_with : dl_cross_perl_core,
 )
 
 install_headers(

src/perl/ui/meson.build

@@ -1,4 +1,4 @@
-libperl_ui_a = shared_module('UI',
+libperl_Irssi_UI_a = shared_module('UI',
   [ xsubpp.process(
     files(
       'Formats.xs',
@@ -20,6 +20,7 @@ libperl_ui_a = shared_module('UI',
   include_directories : rootinc,
   implicit_include_directories : true,
   dependencies : dep + [ perl_dep ],
+  link_with : dl_cross_perl_core,
 )
 
 install_headers(