graphics/pastel: fix build on powerpc

error[E0412]: cannot find type `c_char` in the crate root
  --> /wrkdirs/usr/ports/graphics/pastel/work/pastel-0.8.1/cargo-crates/libc-0.2.97/src/unix/bsd/freebsdlike/freebsd/freebsd11/mod.rs:66:31
   |
66 |         pub f_mntfromname: [::c_char; 88],
   |                               ^^^^^^ help: a type alias with a similar name exists: `c_schar`
   |
  ::: /wrkdirs/usr/ports/graphics/pastel/work/pastel-0.8.1/cargo-crates/libc-0.2.97/src/unix/mod.rs:6:1
   |
6  | pub type c_schar = i8;
   | ---------------------- similarly named type alias `c_schar` defined here

1 files changed, 82 insertions, 0 deletions

diff --git a/graphics/pastel/files/patch-powerpc b/graphics/pastel/files/patch-powerpc
new file mode 100644
index 000000000000..c37b5810c91f
--- /dev/null
+++ b/graphics/pastel/files/patch-powerpc
@@ -0,0 +1,82 @@
+--- cargo-crates/libc-0.2.97/src/unix/bsd/freebsdlike/freebsd/mod.rs.orig	2020-03-17 20:35:43 UTC
++++ cargo-crates/libc-0.2.97/src/unix/bsd/freebsdlike/freebsd/mod.rs
+@@ -1486,6 +1486,9 @@ cfg_if! {
+     } else if #[cfg(target_arch = "powerpc64")] {
+         mod powerpc64;
+         pub use self::powerpc64::*;
++    } else if #[cfg(target_arch = "powerpc")] {
++        mod powerpc;
++        pub use self::powerpc::*;
+     } else {
+         // Unknown target_arch
+     }
+--- cargo-crates/libc-0.2.97/src/unix/bsd/freebsdlike/freebsd/powerpc.rs.orig	2021-06-23 22:40:24 UTC
++++ cargo-crates/libc-0.2.97/src/unix/bsd/freebsdlike/freebsd/powerpc.rs
+@@ -0,0 +1,47 @@
++pub type c_char = u8;
++pub type c_long = i32;
++pub type c_ulong = u32;
++pub type wchar_t = i32;
++pub type time_t = i64;
++pub type suseconds_t = i32;
++pub type register_t = i32;
++
++s! {
++    pub struct stat {
++        pub st_dev: ::dev_t,
++        pub st_ino: ::ino_t,
++        pub st_mode: ::mode_t,
++        pub st_nlink: ::nlink_t,
++        pub st_uid: ::uid_t,
++        pub st_gid: ::gid_t,
++        pub st_rdev: ::dev_t,
++        pub st_atime: ::time_t,
++        pub st_atime_nsec: ::c_long,
++        pub st_mtime: ::time_t,
++        pub st_mtime_nsec: ::c_long,
++        pub st_ctime: ::time_t,
++        pub st_ctime_nsec: ::c_long,
++        pub st_size: ::off_t,
++        pub st_blocks: ::blkcnt_t,
++        pub st_blksize: ::blksize_t,
++        pub st_flags: ::fflags_t,
++        pub st_gen: u32,
++        pub st_lspare: i32,
++        pub st_birthtime: ::time_t,
++        pub st_birthtime_nsec: ::c_long,
++    }
++}
++
++// should be pub(crate), but that requires Rust 1.18.0
++cfg_if! {
++    if #[cfg(libc_const_size_of)] {
++        #[doc(hidden)]
++        pub const _ALIGNBYTES: usize = ::mem::size_of::<::c_int>() - 1;
++    } else {
++        #[doc(hidden)]
++        pub const _ALIGNBYTES: usize = 4 - 1;
++    }
++}
++
++pub const MAP_32BIT: ::c_int = 0x00080000;
++pub const MINSIGSTKSZ: ::size_t = 2048; // 512 * 4
+--- cargo-crates/crossbeam-epoch-0.9.5/no_atomic.rs.orig	2021-07-12 16:01:21.814570000 +0200
++++ cargo-crates/crossbeam-epoch-0.9.5/no_atomic.rs	2021-07-12 16:01:34.083879000 +0200
+@@ -30,6 +30,7 @@
+     "mipsel-unknown-none",
+     "mipsisa32r6-unknown-linux-gnu",
+     "mipsisa32r6el-unknown-linux-gnu",
++    "powerpc-unknown-freebsd",
+     "powerpc-unknown-linux-gnu",
+     "powerpc-unknown-linux-gnuspe",
+     "powerpc-unknown-linux-musl",
+--- cargo-crates/crossbeam-utils-0.8.5/no_atomic.rs.orig	2021-07-12 16:01:05.023177000 +0200
++++ cargo-crates/crossbeam-utils-0.8.5/no_atomic.rs	2021-07-12 16:01:16.538869000 +0200
+@@ -30,6 +30,7 @@
+     "mipsel-unknown-none",
+     "mipsisa32r6-unknown-linux-gnu",
+     "mipsisa32r6el-unknown-linux-gnu",
++    "powerpc-unknown-freebsd",
+     "powerpc-unknown-linux-gnu",
+     "powerpc-unknown-linux-gnuspe",
+     "powerpc-unknown-linux-musl",