[Buildroot] [PATCH 1/3] package/libenca: bump to version 1.22 and migrate to new upstream

[Buildroot] [PATCH 1/3] package/libenca: bump to version 1.22 and migrate to new upstream

[Shubham Chakraborty]

The original upstream site (http://cihar.com/software/enca/) has been
deprecated. The project has been revived and is now maintained at:
https://github.com/Project-OSS-Revival/enca

Changes from 1.19 to 1.22:
- Project moved to GitHub under Project-OSS-Revival organization
- Updated build system and dependencies
- Various bug fixes and improvements
- Continued maintenance after original upstream abandonment

Updated:
- Version from 1.19 to 1.22
- Download site from dl.cihar.com to GitHub releases
- Homepage URL to new GitHub repository

https://github.com/Project-OSS-Revival/enca/releases

Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
---
 package/libenca/Config.in    | 2 +-
 package/libenca/libenca.hash | 2 +-
 package/libenca/libenca.mk   | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/package/libenca/Config.in b/package/libenca/Config.in
index 5e951ed835..55527260ba 100644
--- a/package/libenca/Config.in
+++ b/package/libenca/Config.in
@@ -3,4 +3,4 @@ config BR2_PACKAGE_LIBENCA
 	help
 	  Extremely Naive Charset Analyser
 
-	  http://cihar.com/software/enca/
+	  https://github.com/Project-OSS-Revival/enca
diff --git a/package/libenca/libenca.hash b/package/libenca/libenca.hash
index 04c9d5127f..dfa0bb940b 100644
--- a/package/libenca/libenca.hash
+++ b/package/libenca/libenca.hash
@@ -1,3 +1,3 @@
 # Locally calculated
-sha256  3a487eca40b41021e2e4b7a6440b97d822e6532db5464471f572ecf77295e8b8  enca-1.19.tar.xz
+sha256  95a70dd21198e6427d77a1d79721f4f87dd8bd07fdefe71a2062c6f41eee39da  enca-1.22.tar.xz
 sha256  87f1bd4a52b4029476b684fcdd51fed3c6b2540e462d3c2d3bfc9be4558b2825  COPYING
diff --git a/package/libenca/libenca.mk b/package/libenca/libenca.mk
index 63b6895087..84c32ef7fb 100644
--- a/package/libenca/libenca.mk
+++ b/package/libenca/libenca.mk
@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-LIBENCA_VERSION = 1.19
-LIBENCA_SITE = http://dl.cihar.com/enca
+LIBENCA_VERSION = 1.22
+LIBENCA_SITE = https://github.com/Project-OSS-Revival/enca/releases/download/$(LIBENCA_VERSION)
 LIBENCA_SOURCE = enca-$(LIBENCA_VERSION).tar.xz
 LIBENCA_INSTALL_STAGING = YES
 LIBENCA_LICENSE = GPL-2.0
-- 
2.53.0

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[Buildroot] [PATCH 2/3] DEVELOPERS: add Shubham Chakraborty for libenca

[Shubham Chakraborty]

Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
---
 DEVELOPERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/DEVELOPERS b/DEVELOPERS
index b20cf7d93c..e9c564d86f 100644
--- a/DEVELOPERS
+++ b/DEVELOPERS
@@ -3063,6 +3063,7 @@ F:	package/wolfssl/
 N:	Shubham Chakraborty <chakrabortyshubham66@gmail.com>
 F:	package/ccache/
 F:	package/hyperfine/
+F:	package/libenca/
 
 N:	Simon Dawson <spdawson@gmail.com>
 F:	boot/at91bootstrap3/
-- 
2.53.0

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Re: [Buildroot] [PATCH 2/3] DEVELOPERS: add Shubham Chakraborty for libenca

[Thomas Petazzoni via buildroot]

On Sat, Apr 18, 2026 at 09:25:11PM +0530, Shubham Chakraborty wrote:
> Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
> ---
>  DEVELOPERS | 1 +
>  1 file changed, 1 insertion(+)

Thanks, applied to next!

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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[Buildroot] [PATCH 3/3] package/libenca: fix C23 compatibility for getenv/getopt prototypes

[Shubham Chakraborty]

GCC 15 defaults to C23, which removes support for K&R-style
unprototyped function declarations. This causes build failures
with strict modern C libraries.

Add proper function prototypes for getopt, getopt_long,
getopt_long_only, getenv, and _getopt_internal to comply
with C23 requirements.

Fixes build with musl libc and GCC 15.

Upstream: https://github.com/Project-OSS-Revival/enca/pull/97

Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
---
 ...atibility-for-getenv-getopt-prototyp.patch | 69 +++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 package/libenca/0001-src-fix-C23-compatibility-for-getenv-getopt-prototyp.patch

diff --git a/package/libenca/0001-src-fix-C23-compatibility-for-getenv-getopt-prototyp.patch b/package/libenca/0001-src-fix-C23-compatibility-for-getenv-getopt-prototyp.patch
new file mode 100644
index 0000000000..74e92ce677
--- /dev/null
+++ b/package/libenca/0001-src-fix-C23-compatibility-for-getenv-getopt-prototyp.patch
@@ -0,0 +1,69 @@
+From 1782ea5dd749cd66b38b03aa02bd0c2f9d558f83 Mon Sep 17 00:00:00 2001
+From: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
+Date: Sat, 18 Apr 2026 14:25:27 +0530
+Subject: [PATCH] src: fix C23 compatibility for getenv/getopt prototypes
+
+GCC 15 defaults to C23, which no longer supports unprototyped function
+declarations (K&R style). This fixes conflicts with strict prototypes
+in modern C libraries like musl.
+
+Build-tested in Buildroot using musl libc and C23.
+
+Upstream: https://github.com/Project-OSS-Revival/enca/pull/97
+Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
+---
+ src/getopt.h      | 16 +++++++++++-----
+ src/getopt_long.c |  2 +-
+ 2 files changed, 12 insertions(+), 6 deletions(-)
+
+diff --git a/src/getopt.h b/src/getopt.h
+index 2eae587..91647ae 100644
+--- a/src/getopt.h
++++ b/src/getopt.h
+@@ -144,7 +144,7 @@ struct option
+    errors, only prototype getopt for the GNU C library.  */
+ extern int getopt (int __argc, char *const *__argv, const char *__shortopts);
+ # else /* not __GNU_LIBRARY__ */
+-extern int getopt ();
++extern int getopt (int argc, char * const argv[], const char *shortopts);
+ # endif /* __GNU_LIBRARY__ */
+ 
+ # ifndef __need_getopt
+@@ -161,12 +161,18 @@ extern int _getopt_internal (int __argc, char *const *__argv,
+ 			     int __long_only);
+ # endif
+ #else /* not __STDC__ */
+-extern int getopt ();
++extern int getopt (int argc, char * const argv[], const char *shortopts);
+ # ifndef __need_getopt
+-extern int getopt_long ();
+-extern int getopt_long_only ();
++extern int getopt_long (int argc, char *const *argv, const char *shortopts,
++		        const struct option *longopts, int *longind);
++extern int getopt_long_only (int argc, char *const *argv,
++			     const char *shortopts,
++		             const struct option *longopts, int *longind);
+ 
+-extern int _getopt_internal ();
++extern int _getopt_internal (int __argc, char *const *__argv,
++			     const char *__shortopts,
++		             const struct option *__longopts, int *__longind,
++			     int __long_only);
+ # endif
+ #endif /* __STDC__ */
+ 
+diff --git a/src/getopt_long.c b/src/getopt_long.c
+index caba753..a55fe2a 100644
+--- a/src/getopt_long.c
++++ b/src/getopt_long.c
+@@ -199,7 +199,7 @@ static char *posixly_correct;
+    whose names are inconsistent.  */
+ 
+ #ifndef getenv
+-extern char *getenv ();
++extern char *getenv (const char *name);
+ #endif
+ 
+ static char *
+-- 
+2.53.0
-- 
2.53.0

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Re: [Buildroot] [PATCH 3/3] package/libenca: fix C23 compatibility for getenv/getopt prototypes

[Thomas Petazzoni via buildroot]

Hello,

On Sat, Apr 18, 2026 at 09:25:12PM +0530, Shubham Chakraborty wrote:
> GCC 15 defaults to C23, which removes support for K&R-style
> unprototyped function declarations. This causes build failures
> with strict modern C libraries.
> 
> Add proper function prototypes for getopt, getopt_long,
> getopt_long_only, getenv, and _getopt_internal to comply
> with C23 requirements.
> 
> Fixes build with musl libc and GCC 15.
> 
> Upstream: https://github.com/Project-OSS-Revival/enca/pull/97
> 
> Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>

Thanks for this patch. Since it is a bugfix for an issue that exists
in the current version of libenca in Buildroot, this patch should have
been the first one in the series, before the version bump.

Also, this issue is visible in our autobuilders, so your commit log
should have carried a reference to the autobuilder issue being
fixed. I've added a reference to such a build failure, and applied
your patch to master. Thanks!

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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Re: [Buildroot] [PATCH 1/3] package/libenca: bump to version 1.22 and migrate to new upstream

[Marcus Hoffmann via buildroot]

Hi Michal,

I think enca is/was(?) you project? I wanted to confirm, that you did 
indeed hand over maintenance of the project to the OSS-Revival org, 
before merging a patch, that switches the upstream in buildroot.

Best Marcus

On 4/18/26 17:55, Shubham Chakraborty wrote:
> The original upstream site (http://cihar.com/software/enca/) has been
> deprecated. The project has been revived and is now maintained at:
> https://github.com/Project-OSS-Revival/enca
> 
> Changes from 1.19 to 1.22:
> - Project moved to GitHub under Project-OSS-Revival organization
> - Updated build system and dependencies
> - Various bug fixes and improvements
> - Continued maintenance after original upstream abandonment
> 
> Updated:
> - Version from 1.19 to 1.22
> - Download site from dl.cihar.com to GitHub releases
> - Homepage URL to new GitHub repository
> 
> https://github.com/Project-OSS-Revival/enca/releases
> 
> Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>
> ---
>   package/libenca/Config.in    | 2 +-
>   package/libenca/libenca.hash | 2 +-
>   package/libenca/libenca.mk   | 4 ++--
>   3 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/package/libenca/Config.in b/package/libenca/Config.in
> index 5e951ed835..55527260ba 100644
> --- a/package/libenca/Config.in
> +++ b/package/libenca/Config.in
> @@ -3,4 +3,4 @@ config BR2_PACKAGE_LIBENCA
>   	help
>   	  Extremely Naive Charset Analyser
>   
> -	  http://cihar.com/software/enca/
> +	  https://github.com/Project-OSS-Revival/enca
> diff --git a/package/libenca/libenca.hash b/package/libenca/libenca.hash
> index 04c9d5127f..dfa0bb940b 100644
> --- a/package/libenca/libenca.hash
> +++ b/package/libenca/libenca.hash
> @@ -1,3 +1,3 @@
>   # Locally calculated
> -sha256  3a487eca40b41021e2e4b7a6440b97d822e6532db5464471f572ecf77295e8b8  enca-1.19.tar.xz
> +sha256  95a70dd21198e6427d77a1d79721f4f87dd8bd07fdefe71a2062c6f41eee39da  enca-1.22.tar.xz
>   sha256  87f1bd4a52b4029476b684fcdd51fed3c6b2540e462d3c2d3bfc9be4558b2825  COPYING
> diff --git a/package/libenca/libenca.mk b/package/libenca/libenca.mk
> index 63b6895087..84c32ef7fb 100644
> --- a/package/libenca/libenca.mk
> +++ b/package/libenca/libenca.mk
> @@ -4,8 +4,8 @@
>   #
>   ################################################################################
>   
> -LIBENCA_VERSION = 1.19
> -LIBENCA_SITE = http://dl.cihar.com/enca
> +LIBENCA_VERSION = 1.22
> +LIBENCA_SITE = https://github.com/Project-OSS-Revival/enca/releases/download/$(LIBENCA_VERSION)
>   LIBENCA_SOURCE = enca-$(LIBENCA_VERSION).tar.xz
>   LIBENCA_INSTALL_STAGING = YES
>   LIBENCA_LICENSE = GPL-2.0

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Re: [Buildroot] [PATCH 1/3] package/libenca: bump to version 1.22 and migrate to new upstream

[Thomas Petazzoni via buildroot]

On Sat, Apr 18, 2026 at 09:25:10PM +0530, Shubham Chakraborty wrote:
> The original upstream site (http://cihar.com/software/enca/) has been
> deprecated. The project has been revived and is now maintained at:
> https://github.com/Project-OSS-Revival/enca
> 
> Changes from 1.19 to 1.22:
> - Project moved to GitHub under Project-OSS-Revival organization
> - Updated build system and dependencies
> - Various bug fixes and improvements
> - Continued maintenance after original upstream abandonment
> 
> Updated:
> - Version from 1.19 to 1.22
> - Download site from dl.cihar.com to GitHub releases
> - Homepage URL to new GitHub repository
> 
> https://github.com/Project-OSS-Revival/enca/releases
> 
> Signed-off-by: Shubham Chakraborty <chakrabortyshubham66@gmail.com>

Thanks, applied to next!

Thomas
-- 
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training
https://bootlin.com
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