[S] Change in flashrom[master]: Remove dependency on C23's __has_include()

[Anton Samsonov (Code Review)]

Anton Samsonov has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/77043?usp=email )

Change subject: Remove dependency on C23's __has_include()
......................................................................

Remove dependency on C23's __has_include()

Change-Id: Ifaeb46127785af86e69852152783f75d241b1266
---
M include/cli_classic.h
M include/platform/pci.h
2 files changed, 22 insertions(+), 4 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/43/77043/1

diff --git a/include/cli_classic.h b/include/cli_classic.h
index e651cc6..5b1ab6b 100644
--- a/include/cli_classic.h
+++ b/include/cli_classic.h
@@ -15,9 +15,21 @@
 #ifndef CLI_CLASSIC_H
 #define CLI_CLASSIC_H

-#if __has_include(<getopt.h>)
+#if HAVE_GETOPT_H
 #include <getopt.h>
+#elif !defined(HAVE_GETOPT_H)
+#if !defined(__has_include) || (__STDC_VERSION__ < 202300L)
+#include <getopt.h>
+#define HAVE_GETOPT_H 1
+#elif __has_include(<getopt.h>)
+#include <getopt.h>
+#define HAVE_GETOPT_H 1
 #else
+#define HAVE_GETOPT_H 0
+#endif /* __has_include() */
+#endif /* HAVE_GETOPT_H */
+
+#if !HAVE_GETOPT_H

#define	no_argument		0
 #define required_argument	1
@@ -39,5 +51,5 @@
 int getopt_long_only (int argc, char *const *argv, const char *shortopts,
    		const struct option *longopts, int *longind);

-#endif /* __has_include() */
+#endif /* HAVE_GETOPT_H */
 #endif /* CLI_CLASSIC_H */
diff --git a/include/platform/pci.h b/include/platform/pci.h
index 4ac108f..5e350ac 100644
--- a/include/platform/pci.h
+++ b/include/platform/pci.h
@@ -22,10 +22,16 @@
  * e.g. NetBSD 9.0 on sparc64 pciutils-3.7.0nb2.
  * Other NetBSD platforms and versions uses the default path under pci/pci.h
  */
-#if __has_include(<pciutils/pci.h>)
+#if !defined(__has_include) && (__STDC_VERSION__ < 202300L)
+#if HAVE_PCIUTILS_PCI_H
 #include <pciutils/pci.h>
 #else
 #include <pci/pci.h>
-#endif
+#endif /* HAVE_PCIUTILS_PCI_H */
+#elif __has_include(<pciutils/pci.h>)
+#include <pciutils/pci.h>
+#else
+#include <pci/pci.h>
+#endif /* __has_include(<pciutils/pci.h>) */

#endif /* __PLATFORM_PCI_H__ */