[PATCH] icu: Backport patch to fix build issues with long paths (>512 chars)

[Carlos Alberto Lopez Perez <clopez@igalia.com>]

Signed-off-by: Carlos Alberto Lopez Perez <clopez@igalia.com>
---
 ...813_rise_buffer_sizes_pkgdata_PR3058.patch | 70 +++++++++++++++++++
 meta/recipes-support/icu/icu_75-1.bb          |  1 +
 2 files changed, 71 insertions(+)
 create mode 100644 meta/recipes-support/icu/icu/ICU-22813_rise_buffer_sizes_pkgdata_PR3058.patch

diff --git a/meta/recipes-support/icu/icu/ICU-22813_rise_buffer_sizes_pkgdata_PR3058.patch b/meta/recipes-support/icu/icu/ICU-22813_rise_buffer_sizes_pkgdata_PR3058.patch
new file mode 100644
index 0000000000..367ac75502
--- /dev/null
+++ b/meta/recipes-support/icu/icu/ICU-22813_rise_buffer_sizes_pkgdata_PR3058.patch
@@ -0,0 +1,70 @@
+From db70adaddcfa8050db6a69cdfef080a7f1423ad7 Mon Sep 17 00:00:00 2001
+From: Carlos Alberto Lopez Perez <clopez@igalia.com>
+Date: Mon, 1 Jul 2024 22:15:18 +0100
+Subject: [PATCH] ICU-22813 Rise the size of the buffers used for the command
+ strings at pkgdata
+
+The tool pkgdata uses snprintf() to build the strings of the commands that
+will execute later during the install process. But the maximum size of this
+buffers is not enough when there is a long path.
+
+This has caused issues on some CI systems that use very long paths, causing
+the install process to produce a wrong result.
+
+The maximum path on Linux is 4096 (defined as PATH_MAX at <linux/limits.h>)
+So the size of SMALL_BUFFER_MAX_SIZE should be 4096 to avoid errors related
+to truncated paths.
+
+Upstream-Status: Backport [https://github.com/unicode-org/icu/pull/3058]
+---
+ tools/pkgdata/pkgdata.cpp | 6 +++---
+ tools/toolutil/pkg_genc.h | 5 ++---
+ 2 files changed, 5 insertions(+), 6 deletions(-)
+
+diff --git a/tools/pkgdata/pkgdata.cpp b/tools/pkgdata/pkgdata.cpp
+index c2ac112..8d08c85 100644
+--- a/tools/pkgdata/pkgdata.cpp
++++ b/tools/pkgdata/pkgdata.cpp
+@@ -1134,7 +1134,7 @@ static int32_t pkg_createSymLinks(const char *targetDir, UBool specialHandling)
+ 
+ static int32_t pkg_installLibrary(const char *installDir, const char *targetDir, UBool noVersion) {
+     int32_t result = 0;
+-    char cmd[SMALL_BUFFER_MAX_SIZE];
++    char cmd[LARGE_BUFFER_MAX_SIZE];
+ 
+     auto ret = snprintf(cmd,
+             sizeof(cmd),
+@@ -1205,7 +1205,7 @@ static int32_t pkg_installLibrary(const char *installDir, const char *targetDir,
+ 
+ static int32_t pkg_installCommonMode(const char *installDir, const char *fileName) {
+     int32_t result = 0;
+-    char cmd[SMALL_BUFFER_MAX_SIZE] = "";
++    char cmd[LARGE_BUFFER_MAX_SIZE] = "";
+ 
+     if (!T_FileStream_file_exists(installDir)) {
+         UErrorCode status = U_ZERO_ERROR;
+@@ -1237,7 +1237,7 @@ static int32_t pkg_installCommonMode(const char *installDir, const char *fileNam
+ #endif
+ static int32_t pkg_installFileMode(const char *installDir, const char *srcDir, const char *fileListName) {
+     int32_t result = 0;
+-    char cmd[SMALL_BUFFER_MAX_SIZE] = "";
++    char cmd[LARGE_BUFFER_MAX_SIZE] = "";
+ 
+     if (!T_FileStream_file_exists(installDir)) {
+         UErrorCode status = U_ZERO_ERROR;
+diff --git a/tools/toolutil/pkg_genc.h b/tools/toolutil/pkg_genc.h
+index 2dd1b45..f811fe5 100644
+--- a/tools/toolutil/pkg_genc.h
++++ b/tools/toolutil/pkg_genc.h
+@@ -59,9 +59,8 @@
+ #define PKGDATA_FILE_SEP_STRING U_FILE_SEP_STRING
+ #endif
+ 
+-#define LARGE_BUFFER_MAX_SIZE 2048
+-#define SMALL_BUFFER_MAX_SIZE 512
+-#define SMALL_BUFFER_FLAG_NAMES 32
++#define LARGE_BUFFER_MAX_SIZE 16384
++#define SMALL_BUFFER_MAX_SIZE 4096
+ #define BUFFER_PADDING_SIZE 20
+ 
+ /** End platform defines **/
diff --git a/meta/recipes-support/icu/icu_75-1.bb b/meta/recipes-support/icu/icu_75-1.bb
index 88103e4eca..8f7f5e6cc7 100644
--- a/meta/recipes-support/icu/icu_75-1.bb
+++ b/meta/recipes-support/icu/icu_75-1.bb
@@ -120,6 +120,7 @@ SRC_URI = "${BASE_SRC_URI};name=code \
            file://filter.json \
            file://fix-install-manx.patch \
            file://0001-icu-Added-armeb-support.patch \
+           file://ICU-22813_rise_buffer_sizes_pkgdata_PR3058.patch \
            "
 
 SRC_URI:append:class-target = "\
-- 
2.39.2